102022001122121 has 4 divisors (see below), whose sum is σ = 102023278696644. Its totient is φ = 102020723547600.

The previous prime is 102022001122043. The next prime is 102022001122177. The reversal of 102022001122121 is 121221100220201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46832123560000 + 55189877562121 = 6843400^2 + 7428989^2 .

It is a cyclic number.

It is not a de Polignac number, because 102022001122121 - 2¹⁴ = 102022001105737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102022001122121.

It is not an unprimeable number, because it can be changed into a prime (102022001127121) 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, 638667470 + ... + 638827191.

It is an arithmetic number, because the mean of its divisors is an integer number (25505819674161).

Almost surely, 2^{102022001122121} is an apocalyptic number.

It is an amenable number.

102022001122121 is a deficient number, since it is larger than the sum of its proper divisors (1277574523).

102022001122121 is an equidigital number, since it uses as much as digits as its factorization.

102022001122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277574522.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102022001122121 its reverse (121221100220201), we get a palindrome (223243101342322).

The spelling of 102022001122121 in words is "one hundred two trillion, twenty-two billion, one million, one hundred twenty-two thousand, one hundred twenty-one".