22222121010202 has 16 divisors (see below), whose sum is σ = 33839931788352. Its totient is φ = 10942488829440.

The previous prime is 22222121010101. The next prime is 22222121010317. The reversal of 22222121010202 is 20201012122222.

It is a super-2 number, since 2×22222121010202² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22222121010202.

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, 86141223 + ... + 86398810.

It is an arithmetic number, because the mean of its divisors is an integer number (2114995736772).

Almost surely, 2^{22222121010202} is an apocalyptic number.

22222121010202 is a deficient number, since it is larger than the sum of its proper divisors (11617810778150).

22222121010202 is a wasteful number, since it uses less digits than its factorization.

22222121010202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172541013.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22222121010202 its reverse (20201012122222), we get a palindrome (42423133132424).

The spelling of 22222121010202 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred twenty-one million, ten thousand, two hundred two".