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102203201001220 = 22511464560004551
BaseRepresentation
bin10111001111010000001001…
…011111011001011100000100
3111101212112022210200202220221
4113033100021133121130010
5101343444123424014340
61001211300302234124
730345636411514354
oct2717201137313404
9441775283622827
10102203201001220
112a624152595810
12b5677b9285944
134504949c28937
141b3493894cb64
15bc3816c6b44a
hex5cf4097d9704

102203201001220 has 24 divisors (see below), whose sum is σ = 234138242294208. Its totient is φ = 37164800364000.

The previous prime is 102203201001217. The next prime is 102203201001221. The reversal of 102203201001220 is 22100102302201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102203201001194 and 102203201001203.

It is not an unprimeable number, because it can be changed into a prime (102203201001221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232280002056 + ... + 232280002495.

It is an arithmetic number, because the mean of its divisors is an integer number (9755760095592).

Almost surely, 2102203201001220 is an apocalyptic number.

102203201001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102203201001220 is an abundant number, since it is smaller than the sum of its proper divisors (131935041292988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102203201001220 is a wasteful number, since it uses less digits than its factorization.

102203201001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464560004571 (or 464560004569 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 102203201001220 its reverse (22100102302201), we get a palindrome (124303303303421).

The spelling of 102203201001220 in words is "one hundred two trillion, two hundred three billion, two hundred one million, one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 464560004551 929120009102 1858240018204 2322800022755 4645600045510 5110160050061 9291200091020 10220320100122 20440640200244 25550800250305 51101600500610 102203201001220