221222120212022 has 32 divisors (see below), whose sum is σ = 337342706088960. Its totient is φ = 108789513760800.

The previous prime is 221222120212007. The next prime is 221222120212043. The reversal of 221222120212022 is 220212021222122.

It is a super-2 number, since 2×221222120212022² (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 15 ways as a sum of consecutive naturals, for example, 151974983 + ... + 153423725.

It is an arithmetic number, because the mean of its divisors is an integer number (10541959565280).

Almost surely, 2^{221222120212022} is an apocalyptic number.

221222120212022 is a deficient number, since it is larger than the sum of its proper divisors (116120585876938).

221222120212022 is a wasteful number, since it uses less digits than its factorization.

221222120212022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453908.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 221222120212022 its reverse (220212021222122), we get a palindrome (441434141434144).

The spelling of 221222120212022 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, one hundred twenty million, two hundred twelve thousand, twenty-two".