20013212222212 has 24 divisors (see below), whose sum is σ = 38207171594592. Its totient is φ = 9096883675200.

The previous prime is 20013212222183. The next prime is 20013212222233. The reversal of 20013212222212 is 21222221231002.

It is a happy number.

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

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 7 ways as a sum of consecutive naturals, for example, 16755648 + ... + 17910280.

It is an arithmetic number, because the mean of its divisors is an integer number (1591965483108).

Almost surely, 2^{20013212222212} is an apocalyptic number.

20013212222212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20013212222212 is a deficient number, since it is larger than the sum of its proper divisors (18193959372380).

20013212222212 is a wasteful number, since it uses less digits than its factorization.

20013212222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548579 (or 1548577 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 20013212222212 its reverse (21222221231002), we get a palindrome (41235433453214).

The spelling of 20013212222212 in words is "twenty trillion, thirteen billion, two hundred twelve million, two hundred twenty-two thousand, two hundred twelve".