22212022121121 has 32 divisors (see below), whose sum is σ = 34587776102400. Its totient is φ = 12415076142336.

The previous prime is 22212022121089. The next prime is 22212022121123. The reversal of 22212022121121 is 12112122021222.

It is not a de Polignac number, because 22212022121121 - 2⁵ = 22212022121089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (22212022121123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5104696 + ... + 8395353.

It is an arithmetic number, because the mean of its divisors is an integer number (1080868003200).

Almost surely, 2^{22212022121121} is an apocalyptic number.

22212022121121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22212022121121 is a deficient number, since it is larger than the sum of its proper divisors (12375753981279).

22212022121121 is a wasteful number, since it uses less digits than its factorization.

22212022121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13501773.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22212022121121 its reverse (12112122021222), we get a palindrome (34324144142343).

The spelling of 22212022121121 in words is "twenty-two trillion, two hundred twelve billion, twenty-two million, one hundred twenty-one thousand, one hundred twenty-one".