222211210121022 has 64 divisors (see below), whose sum is σ = 460319400769536. Its totient is φ = 71463352527840.

The previous prime is 222211210121003. The next prime is 222211210121023. The reversal of 222211210121022 is 220121012112222.

It is a self number, because there is not a number n which added to its sum of digits gives 222211210121022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222211210121023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118797673 + ... + 120653675.

It is an arithmetic number, because the mean of its divisors is an integer number (7192490637024).

Almost surely, 2^{222211210121022} is an apocalyptic number.

222211210121022 is an abundant number, since it is smaller than the sum of its proper divisors (238108190648514).

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

222211210121022 is a wasteful number, since it uses less digits than its factorization.

222211210121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861725.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 222211210121022 its reverse (220121012112222), we get a palindrome (442332222233244).

The spelling of 222211210121022 in words is "two hundred twenty-two trillion, two hundred eleven billion, two hundred ten million, one hundred twenty-one thousand, twenty-two".