102030322212021 has 32 divisors (see below), whose sum is σ = 158355837803520. Its totient is φ = 57225717045504.

The previous prime is 102030322212017. The next prime is 102030322212053. The reversal of 102030322212021 is 120212223030201.

It is not a de Polignac number, because 102030322212021 - 2² = 102030322212017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102030322211021) 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, 63238260 + ... + 64831613.

It is an arithmetic number, because the mean of its divisors is an integer number (4948619931360).

Almost surely, 2^{102030322212021} is an apocalyptic number.

It is an amenable number.

102030322212021 is a deficient number, since it is larger than the sum of its proper divisors (56325515591499).

102030322212021 is a wasteful number, since it uses less digits than its factorization.

102030322212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128070585.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 102030322212021 its reverse (120212223030201), we get a palindrome (222242545242222).

The spelling of 102030322212021 in words is "one hundred two trillion, thirty billion, three hundred twenty-two million, two hundred twelve thousand, twenty-one".