22120012122220 has 48 divisors (see below), whose sum is σ = 49918594572000. Its totient is φ = 8203242415104.

The previous prime is 22120012122217. The next prime is 22120012122233. The reversal of 22120012122220 is 2222121002122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485491095 + ... + 485536654.

It is an arithmetic number, because the mean of its divisors is an integer number (1039970720250).

Almost surely, 2^{22120012122220} is an apocalyptic number.

22120012122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120012122220 is an abundant number, since it is smaller than the sum of its proper divisors (27798582449780).

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

22120012122220 is a wasteful number, since it uses less digits than its factorization.

22120012122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971027842 (or 971027840 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22120012122220 its reverse (2222121002122), we get a palindrome (24342133124342).

The spelling of 22120012122220 in words is "twenty-two trillion, one hundred twenty billion, twelve million, one hundred twenty-two thousand, two hundred twenty".