211222100000238 has 16 divisors (see below), whose sum is σ = 422444381600640. Its totient is φ = 70407336400056.

The previous prime is 211222100000237. The next prime is 211222100000239. The reversal of 211222100000238 is 832000001222112.

It is an interprime number because it is at equal distance from previous prime (211222100000237) and next prime (211222100000239).

It is a super-2 number, since 2×211222100000238² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222100000237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11093781 + ... + 23356287.

It is an arithmetic number, because the mean of its divisors is an integer number (26402773850040).

Almost surely, 2^{211222100000238} is an apocalyptic number.

211222100000238 is an abundant number, since it is smaller than the sum of its proper divisors (211222281600402).

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

211222100000238 is a wasteful number, since it uses less digits than its factorization.

211222100000238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15133351.

The product of its (nonzero) digits is 768, while the sum is 24.

The spelling of 211222100000238 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred million, two hundred thirty-eight", and thus it is an aban number.