22121114220 has 36 divisors (see below), whose sum is σ = 67100713680. Its totient is φ = 5898963744.

The previous prime is 22121114209. The next prime is 22121114333. The reversal of 22121114220 is 2241112122.

22121114220 is a `hidden beast` number, since 221 + 21 + 1 + 1 + 422 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22121114193 and 22121114202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61447360 + ... + 61447719.

Almost surely, 2^22121114220 is an apocalyptic number.

22121114220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22121114220 is an abundant number, since it is smaller than the sum of its proper divisors (44979599460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22121114220 is a wasteful number, since it uses less digits than its factorization.

22121114220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122895094 (or 122895089 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22121114220 its reverse (2241112122), we get a palindrome (24362226342).

The spelling of 22121114220 in words is "twenty-two billion, one hundred twenty-one million, one hundred fourteen thousand, two hundred twenty".