22121111211202 has 8 divisors (see below), whose sum is σ = 33183672164496. Its totient is φ = 11059887156372.

The previous prime is 22121111211163. The next prime is 22121111211211. The reversal of 22121111211202 is 20211211112122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22121111211202² (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 22121111211202.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 334183248 + ... + 334249435.

It is an arithmetic number, because the mean of its divisors is an integer number (4147959020562).

Almost surely, 2^{22121111211202} is an apocalyptic number.

22121111211202 is a deficient number, since it is larger than the sum of its proper divisors (11062560953294).

22121111211202 is a wasteful number, since it uses less digits than its factorization.

22121111211202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668449232.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22121111211202 its reverse (20211211112122), we get a palindrome (42332322323324).

The spelling of 22121111211202 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred eleven million, two hundred eleven thousand, two hundred two".