102122211201121 has 4 divisors (see below), whose sum is σ = 102122314386372. Its totient is φ = 102122108015872.

The previous prime is 102122211201061. The next prime is 102122211201137. The reversal of 102122211201121 is 121102112221201.

It is a happy number.

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 50941565176896 + 51180646024225 = 7137336^2 + 7154065^2 .

It is a cyclic number.

It is not a de Polignac number, because 102122211201121 - 2²¹ = 102122209103969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102122211201151) 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, 50093560 + ... + 52092313.

It is an arithmetic number, because the mean of its divisors is an integer number (25530578596593).

Almost surely, 2^{102122211201121} is an apocalyptic number.

It is an amenable number.

102122211201121 is a deficient number, since it is larger than the sum of its proper divisors (103185251).

102122211201121 is an equidigital number, since it uses as much as digits as its factorization.

102122211201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103185250.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 102122211201121 its reverse (121102112221201), we get a palindrome (223224323422322).

The spelling of 102122211201121 in words is "one hundred two trillion, one hundred twenty-two billion, two hundred eleven million, two hundred one thousand, one hundred twenty-one".