102021012221001 has 16 divisors (see below), whose sum is σ = 136782164500800. Its totient is φ = 67636948397760.

The previous prime is 102021012220969. The next prime is 102021012221039. The reversal of 102021012221001 is 100122210120201.

It is not a de Polignac number, because 102021012221001 - 2⁵ = 102021012220969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102021012321001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27092386 + ... + 30627428.

It is an arithmetic number, because the mean of its divisors is an integer number (8548885281300).

Almost surely, 2^{102021012221001} is an apocalyptic number.

It is an amenable number.

102021012221001 is a deficient number, since it is larger than the sum of its proper divisors (34761152279799).

102021012221001 is a wasteful number, since it uses less digits than its factorization.

102021012221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3588376.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102021012221001 its reverse (100122210120201), we get a palindrome (202143222341202).

The spelling of 102021012221001 in words is "one hundred two trillion, twenty-one billion, twelve million, two hundred twenty-one thousand, one".