222121110122022 has 16 divisors (see below), whose sum is σ = 453694182377472. Its totient is φ = 72465043018440.

The previous prime is 222121110121969. The next prime is 222121110122027. The reversal of 222121110122022 is 220221011121222.

It is a self number, because there is not a number n which added to its sum of digits gives 222121110122022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222121110122027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393831755254 + ... + 393831755817.

It is an arithmetic number, because the mean of its divisors is an integer number (28355886398592).

Almost surely, 2^{222121110122022} is an apocalyptic number.

222121110122022 is an abundant number, since it is smaller than the sum of its proper divisors (231573072255450).

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

222121110122022 is a wasteful number, since it uses less digits than its factorization.

222121110122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787663511123.

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

Adding to 222121110122022 its reverse (220221011121222), we get a palindrome (442342121243244).

The spelling of 222121110122022 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred ten million, one hundred twenty-two thousand, twenty-two".