102211021002121 has 4 divisors (see below), whose sum is σ = 102695433424144. Its totient is φ = 101726608580100.

The previous prime is 102211021002113. The next prime is 102211021002131. The reversal of 102211021002121 is 121200120112201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102211021002121 - 2³ = 102211021002113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102211021002095 and 102211021002104.

It is not an unprimeable number, because it can be changed into a prime (102211021002131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242206210695 + ... + 242206211116.

It is an arithmetic number, because the mean of its divisors is an integer number (25673858356036).

Almost surely, 2^{102211021002121} is an apocalyptic number.

It is an amenable number.

102211021002121 is a deficient number, since it is larger than the sum of its proper divisors (484412422023).

102211021002121 is an equidigital number, since it uses as much as digits as its factorization.

102211021002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484412422022.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102211021002121 its reverse (121200120112201), we get a palindrome (223411141114322).

The spelling of 102211021002121 in words is "one hundred two trillion, two hundred eleven billion, twenty-one million, two thousand, one hundred twenty-one".