222221022011220 has 96 divisors (see below), whose sum is σ = 632871603302400. Its totient is φ = 58252953959424.

The previous prime is 222221022011159. The next prime is 222221022011239. The reversal of 222221022011220 is 22110220122222.

222221022011220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×222221022011220² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 132944025 + ... + 134605184.

It is an arithmetic number, because the mean of its divisors is an integer number (6592412534400).

Almost surely, 2^{222221022011220} is an apocalyptic number.

222221022011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222221022011220 is an abundant number, since it is smaller than the sum of its proper divisors (410650581291180).

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

222221022011220 is a wasteful number, since it uses less digits than its factorization.

222221022011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267549457 (or 267549455 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 222221022011220 its reverse (22110220122222), we get a palindrome (244331242133442).

The spelling of 222221022011220 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, twenty-two million, eleven thousand, two hundred twenty".