222111222121002 has 16 divisors (see below), whose sum is σ = 467602572886560. Its totient is φ = 70140385932912.

The previous prime is 222111222120967. The next prime is 222111222121111. The reversal of 222111222121002 is 200121222111222.

It is a self number, because there is not a number n which added to its sum of digits gives 222111222121002.

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, 974172026733 + ... + 974172026960.

It is an arithmetic number, because the mean of its divisors is an integer number (29225160805410).

Almost surely, 2^{222111222121002} is an apocalyptic number.

222111222121002 is an abundant number, since it is smaller than the sum of its proper divisors (245491350765558).

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

222111222121002 is a wasteful number, since it uses less digits than its factorization.

222111222121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948344053717.

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

Adding to 222111222121002 its reverse (200121222111222), we get a palindrome (422232444232224).

The spelling of 222111222121002 in words is "two hundred twenty-two trillion, one hundred eleven billion, two hundred twenty-two million, one hundred twenty-one thousand, two".