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10102202221 = 311931168761
BaseRepresentation
bin10010110100010001…
…10101111101101101
3222002001002001012211
421122020311331231
5131142130432341
64350233130421
7505225205416
oct113210657555
928061061184
1010102202221
114314480061
121b5b259a11
13c4cc22467
146bb96880d
153e1d4a181
hex25a235f6d

10102202221 has 8 divisors (see below), whose sum is σ = 10433541888. Its totient is φ = 9771204000.

The previous prime is 10102202197. The next prime is 10102202261. The reversal of 10102202221 is 12220220101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10102202221 - 25 = 10102202189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102202261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24520 + ... + 144241.

It is an arithmetic number, because the mean of its divisors is an integer number (1304192736).

Almost surely, 210102202221 is an apocalyptic number.

It is an amenable number.

10102202221 is a deficient number, since it is larger than the sum of its proper divisors (331339667).

10102202221 is a wasteful number, since it uses less digits than its factorization.

10102202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170723.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10102202221 its reverse (12220220101), we get a palindrome (22322422322).

The spelling of 10102202221 in words is "ten billion, one hundred two million, two hundred two thousand, two hundred twenty-one".

Divisors: 1 31 1931 59861 168761 5231591 325877491 10102202221