102021211101201 has 64 divisors (see below), whose sum is σ = 174391109222400. Its totient is φ = 51704238586176.

The previous prime is 102021211101191. The next prime is 102021211101241. The reversal of 102021211101201 is 102101112120201.

It is a happy number.

It is not a de Polignac number, because 102021211101201 - 2²² = 102021206906897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102021211101241) 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, 117835221 + ... + 118697858.

It is an arithmetic number, because the mean of its divisors is an integer number (2724861081600).

Almost surely, 2^{102021211101201} is an apocalyptic number.

It is an amenable number.

102021211101201 is a deficient number, since it is larger than the sum of its proper divisors (72369898121199).

102021211101201 is a wasteful number, since it uses less digits than its factorization.

102021211101201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236533178.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102021211101201 its reverse (102101112120201), we get a palindrome (204122323221402).

The spelling of 102021211101201 in words is "one hundred two trillion, twenty-one billion, two hundred eleven million, one hundred one thousand, two hundred one".