22112211022220 has 96 divisors (see below), whose sum is σ = 50747976921600. Its totient is φ = 8026378329600.

The previous prime is 22112211022211. The next prime is 22112211022249. The reversal of 22112211022220 is 2222011221122.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22112211022192 and 22112211022201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1029373880 + ... + 1029395360.

It is an arithmetic number, because the mean of its divisors is an integer number (528624759600).

Almost surely, 2^{22112211022220} is an apocalyptic number.

22112211022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22112211022220 is an abundant number, since it is smaller than the sum of its proper divisors (28635765899380).

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

22112211022220 is a wasteful number, since it uses less digits than its factorization.

22112211022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29679 (or 29677 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22112211022220 its reverse (2222011221122), we get a palindrome (24334222243342).

The spelling of 22112211022220 in words is "twenty-two trillion, one hundred twelve billion, two hundred eleven million, twenty-two thousand, two hundred twenty".