102122001021 has 32 divisors (see below), whose sum is σ = 144890265600. Its totient is φ = 63796852800.

The previous prime is 102122001011. The next prime is 102122001067. The reversal of 102122001021 is 120100221201.

It is not a de Polignac number, because 102122001021 - 2⁵ = 102122000989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102122000988 and 102122001006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102122001011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6249700 + ... + 6266018.

It is an arithmetic number, because the mean of its divisors is an integer number (4527820800).

Almost surely, 2^102122001021 is an apocalyptic number.

It is an amenable number.

102122001021 is a deficient number, since it is larger than the sum of its proper divisors (42768264579).

102122001021 is a wasteful number, since it uses less digits than its factorization.

102122001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17529.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102122001021 its reverse (120100221201), we get a palindrome (222222222222).

The spelling of 102122001021 in words is "one hundred two billion, one hundred twenty-two million, one thousand, twenty-one".