102102021022122 has 48 divisors (see below), whose sum is σ = 241332727315680. Its totient is φ = 30939919495200.

The previous prime is 102102021022121. The next prime is 102102021022207. The reversal of 102102021022122 is 221220120201201.

It is a happy number.

102102021022122 is a `hidden beast` number, since 1 + 0 + 210 + 2 + 0 + 210 + 221 + 22 = 666.

It is a super-2 number, since 2×102102021022122² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102102021022095 and 102102021022104.

It is not an unprimeable number, because it can be changed into a prime (102102021022121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124733797 + ... + 125549687.

It is an arithmetic number, because the mean of its divisors is an integer number (5027765152410).

Almost surely, 2^{102102021022122} is an apocalyptic number.

102102021022122 is an abundant number, since it is smaller than the sum of its proper divisors (139230706293558).

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

102102021022122 is a wasteful number, since it uses less digits than its factorization.

102102021022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447939 (or 1447936 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102102021022122 its reverse (221220120201201), we get a palindrome (323322141223323).

The spelling of 102102021022122 in words is "one hundred two trillion, one hundred two billion, twenty-one million, twenty-two thousand, one hundred twenty-two".