102021211112021 has 8 divisors (see below), whose sum is σ = 103545420412224. Its totient is φ = 100497046066560.

The previous prime is 102021211112017. The next prime is 102021211112039. The reversal of 102021211112021 is 120211112120201.

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 102021211112021 - 2² = 102021211112017 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 (102021211102021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6404060 + ... + 15654213.

It is an arithmetic number, because the mean of its divisors is an integer number (12943177551528).

Almost surely, 2^{102021211112021} is an apocalyptic number.

It is an amenable number.

102021211112021 is a deficient number, since it is larger than the sum of its proper divisors (1524209300203).

102021211112021 is an equidigital number, since it uses as much as digits as its factorization.

102021211112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22127371.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102021211112021 its reverse (120211112120201), we get a palindrome (222232323232222).

The spelling of 102021211112021 in words is "one hundred two trillion, twenty-one billion, two hundred eleven million, one hundred twelve thousand, twenty-one".