22201022120220 has 72 divisors (see below), whose sum is σ = 71304459290064. Its totient is φ = 5572021237248.

The previous prime is 22201022120201. The next prime is 22201022120257. The reversal of 22201022120220 is 2202122010222.

22201022120220 is a `hidden beast` number, since 2 + 2 + 201 + 0 + 221 + 20 + 220 = 666.

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 = 22201022120193 and 22201022120202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3627614934 + ... + 3627621053.

It is an arithmetic number, because the mean of its divisors is an integer number (990339712362).

Almost surely, 2^{22201022120220} is an apocalyptic number.

22201022120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201022120220 is an abundant number, since it is smaller than the sum of its proper divisors (49103437169844).

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

22201022120220 is a wasteful number, since it uses less digits than its factorization.

22201022120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7255236019 (or 7255236014 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22201022120220 its reverse (2202122010222), we get a palindrome (24403144130442).

The spelling of 22201022120220 in words is "twenty-two trillion, two hundred one billion, twenty-two million, one hundred twenty thousand, two hundred twenty".