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120202122220 = 2258372410917
BaseRepresentation
bin110111111110010011…
…0101101001111101100
3102111021002111111001121
41233330212231033230
53432133220402340
6131115312350324
711453502116005
oct1577446551754
9374232444047
10120202122220
1146a82a67584
121b3675453a4
13b44803560b
145b6411c1ac
1531d7acd94a
hex1bfc9ad3ec

120202122220 has 24 divisors (see below), whose sum is σ = 255465718704. Its totient is φ = 47501560896.

The previous prime is 120202122199. The next prime is 120202122223. The reversal of 120202122220 is 22221202021.

It is a junction number, because it is equal to n+sod(n) for n = 120202122194 and 120202122203.

It is not an unprimeable number, because it can be changed into a prime (120202122223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36203799 + ... + 36207118.

It is an arithmetic number, because the mean of its divisors is an integer number (10644404946).

Almost surely, 2120202122220 is an apocalyptic number.

120202122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120202122220 is an abundant number, since it is smaller than the sum of its proper divisors (135263596484).

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

120202122220 is a wasteful number, since it uses less digits than its factorization.

120202122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72411009 (or 72411007 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 120202122220 its reverse (22221202021), we get a palindrome (142423324241).

The spelling of 120202122220 in words is "one hundred twenty billion, two hundred two million, one hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 83 166 332 415 830 1660 72410917 144821834 289643668 362054585 724109170 1448218340 6010106111 12020212222 24040424444 30050530555 60101061110 120202122220