203213222212 has 96 divisors (see below), whose sum is σ = 502610734080. Its totient is φ = 69237141120.

The previous prime is 203213222143. The next prime is 203213222249. The reversal of 203213222212 is 212222312302.

It is a super-2 number, since 2×203213222212² (a number of 23 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1259518 + ... + 1411669.

It is an arithmetic number, because the mean of its divisors is an integer number (5235528480).

Almost surely, 2^203213222212 is an apocalyptic number.

203213222212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

203213222212 is an abundant number, since it is smaller than the sum of its proper divisors (299397511868).

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

203213222212 is a wasteful number, since it uses less digits than its factorization.

203213222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671241 (or 2671239 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 203213222212 its reverse (212222312302), we get a palindrome (415435534514).

The spelling of 203213222212 in words is "two hundred three billion, two hundred thirteen million, two hundred twenty-two thousand, two hundred twelve".