22220210002120 has 32 divisors (see below), whose sum is σ = 53841278083320. Its totient is φ = 8204385231360.

The previous prime is 22220210002117. The next prime is 22220210002121. The reversal of 22220210002120 is 2120001202222.

It can be written as a sum of positive squares in 4 ways, for example, as 15150045997636 + 7070164004484 = 3892306^2 + 2658978^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22220210002094 and 22220210002103.

It is not an unprimeable number, because it can be changed into a prime (22220210002121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21365586021 + ... + 21365587060.

Almost surely, 2^{22220210002120} is an apocalyptic number.

22220210002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220210002120 is an abundant number, since it is smaller than the sum of its proper divisors (31621068081200).

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

22220210002120 is a wasteful number, since it uses less digits than its factorization.

22220210002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42731173105 (or 42731173101 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22220210002120 its reverse (2120001202222), we get a palindrome (24340211204342).

The spelling of 22220210002120 in words is "twenty-two trillion, two hundred twenty billion, two hundred ten million, two thousand, one hundred twenty".