100022211121 has 4 divisors (see below), whose sum is σ = 114311098432. Its totient is φ = 85733323812.

The previous prime is 100022211083. The next prime is 100022211137. The reversal of 100022211121 is 121112220001.

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, and also an emirpimes, since its reverse is a distinct semiprime: 121112220001 = 11083 ⋅10927747.

It is a cyclic number.

It is not a de Polignac number, because 100022211121 - 2¹¹ = 100022209073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100022211521) 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, 7144443645 + ... + 7144443658.

It is an arithmetic number, because the mean of its divisors is an integer number (28577774608).

Almost surely, 2^100022211121 is an apocalyptic number.

It is an amenable number.

100022211121 is a deficient number, since it is larger than the sum of its proper divisors (14288887311).

100022211121 is an equidigital number, since it uses as much as digits as its factorization.

100022211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14288887310.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100022211121 its reverse (121112220001), we get a palindrome (221134431122).

The spelling of 100022211121 in words is "one hundred billion, twenty-two million, two hundred eleven thousand, one hundred twenty-one".