22211112212212 has 24 divisors (see below), whose sum is σ = 48460608463680. Its totient is φ = 8653680082560.

The previous prime is 22211112212207. The next prime is 22211112212221. The reversal of 22211112212212 is 21221221111222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 36057000037 + ... + 36057000652.

It is an arithmetic number, because the mean of its divisors is an integer number (2019192019320).

Almost surely, 2^{22211112212212} is an apocalyptic number.

22211112212212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22211112212212 is an abundant number, since it is smaller than the sum of its proper divisors (26249496251468).

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

22211112212212 is a wasteful number, since it uses less digits than its factorization.

22211112212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72114000711 (or 72114000709 counting only the distinct ones).

The product of its digits is 256, while the sum is 22.

Adding to 22211112212212 its reverse (21221221111222), we get a palindrome (43432333323434).

The spelling of 22211112212212 in words is "twenty-two trillion, two hundred eleven billion, one hundred twelve million, two hundred twelve thousand, two hundred twelve".