222120121021226 has 16 divisors (see below), whose sum is σ = 336617025126144. Its totient is φ = 109914459560064.

The previous prime is 222120121021193. The next prime is 222120121021313. The reversal of 222120121021226 is 622120121021222.

It is a junction number, because it is equal to n+sod(n) for n = 222120121021195 and 222120121021204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30257801 + ... + 36875123.

It is an arithmetic number, because the mean of its divisors is an integer number (21038564070384).

Almost surely, 2^{222120121021226} is an apocalyptic number.

222120121021226 is a deficient number, since it is larger than the sum of its proper divisors (114496904104918).

222120121021226 is a wasteful number, since it uses less digits than its factorization.

222120121021226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6790445.

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 222120121021226 its reverse (622120121021222), we get a palindrome (844240242042448).

The spelling of 222120121021226 in words is "two hundred twenty-two trillion, one hundred twenty billion, one hundred twenty-one million, twenty-one thousand, two hundred twenty-six".