221202120121022 has 32 divisors (see below), whose sum is σ = 344354847782400. Its totient is φ = 106441854472800.

The previous prime is 221202120120991. The next prime is 221202120121033. The reversal of 221202120121022 is 220121021202122.

It is a junction number, because it is equal to n+sod(n) for n = 221202120120985 and 221202120121003.

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, 1482125879 + ... + 1482275117.

It is an arithmetic number, because the mean of its divisors is an integer number (10761088993200).

Almost surely, 2^{221202120121022} is an apocalyptic number.

221202120121022 is a deficient number, since it is larger than the sum of its proper divisors (123152727661378).

221202120121022 is a wasteful number, since it uses less digits than its factorization.

221202120121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231752.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 221202120121022 its reverse (220121021202122), we get a palindrome (441323141323144).

The spelling of 221202120121022 in words is "two hundred twenty-one trillion, two hundred two billion, one hundred twenty million, one hundred twenty-one thousand, twenty-two".