211216738038 has 16 divisors (see below), whose sum is σ = 424200983040. Its totient is φ = 70110994856.

The previous prime is 211216737989. The next prime is 211216738079. The reversal of 211216738038 is 830837612112.

It is a super-2 number, since 2×211216738038² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73644570 + ... + 73647437.

It is an arithmetic number, because the mean of its divisors is an integer number (26512561440).

Almost surely, 2^211216738038 is an apocalyptic number.

211216738038 is an abundant number, since it is smaller than the sum of its proper divisors (212984245002).

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

211216738038 is a wasteful number, since it uses less digits than its factorization.

211216738038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147292251.

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 211216738038 in words is "two hundred eleven billion, two hundred sixteen million, seven hundred thirty-eight thousand, thirty-eight".