102021000220101 has 64 divisors (see below), whose sum is σ = 141585806336000. Its totient is φ = 65290642292736.

The previous prime is 102021000220063. The next prime is 102021000220127. The reversal of 102021000220101 is 101022000120201.

It is not a de Polignac number, because 102021000220101 - 2²⁷ = 102020866002373 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 (102021000220301) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10254392475 + ... + 10254402423.

It is an arithmetic number, because the mean of its divisors is an integer number (2212278224000).

Almost surely, 2^{102021000220101} is an apocalyptic number.

It is an amenable number.

102021000220101 is a deficient number, since it is larger than the sum of its proper divisors (39564806115899).

102021000220101 is a wasteful number, since it uses less digits than its factorization.

102021000220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14078.

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

Adding to 102021000220101 its reverse (101022000120201), we get a palindrome (203043000340302).

The spelling of 102021000220101 in words is "one hundred two trillion, twenty-one billion, two hundred twenty thousand, one hundred one".