102021102021 has 32 divisors (see below), whose sum is σ = 141950002176. Its totient is φ = 65102400000.

The previous prime is 102021101999. The next prime is 102021102041. The reversal of 102021102021 is 120201120201.

It is not a de Polignac number, because 102021102021 - 2⁵ = 102021101989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102021101988 and 102021102006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021102041) 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, 10299171 + ... + 10309071.

It is an arithmetic number, because the mean of its divisors is an integer number (4435937568).

Almost surely, 2^102021102021 is an apocalyptic number.

It is an amenable number.

102021102021 is a deficient number, since it is larger than the sum of its proper divisors (39928900155).

102021102021 is a wasteful number, since it uses less digits than its factorization.

102021102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11133.

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

Adding to 102021102021 its reverse (120201120201), we get a palindrome (222222222222).

The spelling of 102021102021 in words is "one hundred two billion, twenty-one million, one hundred two thousand, twenty-one".