222221212220022 has 64 divisors (see below), whose sum is σ = 482461128576000. Its totient is φ = 68004044363520.

The previous prime is 222221212220011. The next prime is 222221212220089. The reversal of 222221212220022 is 220022212122222.

It is a junction number, because it is equal to n+sod(n) for n = 222221212219974 and 222221212220001.

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, 158847598 + ... + 160240449.

It is an arithmetic number, because the mean of its divisors is an integer number (7538455134000).

Almost surely, 2^{222221212220022} is an apocalyptic number.

222221212220022 is an abundant number, since it is smaller than the sum of its proper divisors (260239916355978).

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

222221212220022 is a wasteful number, since it uses less digits than its factorization.

222221212220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319088261.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 222221212220022 its reverse (220022212122222), we get a palindrome (442243424342244).

It can be divided in two parts, 2222212122200 and 22, that added together give a palindrome (2222212122222).

The spelling of 222221212220022 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two hundred twelve million, two hundred twenty thousand, twenty-two".