22111202210212 has 48 divisors (see below), whose sum is σ = 42764575896000. Its totient is φ = 9961630487424.

The previous prime is 22111202210107. The next prime is 22111202210221. The reversal of 22111202210212 is 21201220211122.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 22111202210212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74720287 + ... + 75015622.

It is an arithmetic number, because the mean of its divisors is an integer number (890928664500).

Almost surely, 2^{22111202210212} is an apocalyptic number.

It is an amenable number.

22111202210212 is a deficient number, since it is larger than the sum of its proper divisors (20653373685788).

22111202210212 is a wasteful number, since it uses less digits than its factorization.

22111202210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149736028 (or 149736026 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22111202210212 its reverse (21201220211122), we get a palindrome (43312422421334).

The spelling of 22111202210212 in words is "twenty-two trillion, one hundred eleven billion, two hundred two million, two hundred ten thousand, two hundred twelve".