212204738072 has 16 divisors (see below), whose sum is σ = 397946412240. Its totient is φ = 106085694816.

The previous prime is 212204738071. The next prime is 212204738093. The reversal of 212204738072 is 270837402212.

It is a super-2 number, since 2×212204738072² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212204738071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2030108 + ... + 2132075.

It is an arithmetic number, because the mean of its divisors is an integer number (24871650765).

Almost surely, 2^212204738072 is an apocalyptic number.

It is an amenable number.

212204738072 is a deficient number, since it is larger than the sum of its proper divisors (185741674168).

212204738072 is a wasteful number, since it uses less digits than its factorization.

212204738072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4168562 (or 4168558 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The spelling of 212204738072 in words is "two hundred twelve billion, two hundred four million, seven hundred thirty-eight thousand, seventy-two".