222000211220121 has 12 divisors (see below), whose sum is σ = 334609014013248. Its totient is φ = 141565352082264.

The previous prime is 222000211220063. The next prime is 222000211220171. The reversal of 222000211220121 is 121022112000222.

It is a happy number.

222000211220121 is a `hidden beast` number, since 2 + 220 + 0 + 0 + 211 + 220 + 12 + 1 = 666.

It is not a de Polignac number, because 222000211220121 - 2¹⁸ = 222000210957977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222000211220094 and 222000211220103.

It is not an unprimeable number, because it can be changed into a prime (222000211220171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 536232394045 + ... + 536232394458.

It is an arithmetic number, because the mean of its divisors is an integer number (27884084501104).

Almost surely, 2^{222000211220121} is an apocalyptic number.

It is an amenable number.

222000211220121 is a deficient number, since it is larger than the sum of its proper divisors (112608802793127).

222000211220121 is a wasteful number, since it uses less digits than its factorization.

222000211220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072464788532 (or 1072464788529 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222000211220121 its reverse (121022112000222), we get a palindrome (343022323220343).

The spelling of 222000211220121 in words is "two hundred twenty-two trillion, two hundred eleven million, two hundred twenty thousand, one hundred twenty-one".