212517070070 has 64 divisors (see below), whose sum is σ = 401870989440. Its totient is φ = 80803430400.

The previous prime is 212517070063. The next prime is 212517070081. The reversal of 212517070070 is 70070715212.

It is a super-2 number, since 2×212517070070² (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 31 ways as a sum of consecutive naturals, for example, 15085430 + ... + 15099510.

It is an arithmetic number, because the mean of its divisors is an integer number (6279234210).

Almost surely, 2^212517070070 is an apocalyptic number.

212517070070 is a deficient number, since it is larger than the sum of its proper divisors (189353919370).

212517070070 is a wasteful number, since it uses less digits than its factorization.

212517070070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14921.

The product of its (nonzero) digits is 6860, while the sum is 32.

Adding to 212517070070 its reverse (70070715212), we get a palindrome (282587785282).

The spelling of 212517070070 in words is "two hundred twelve billion, five hundred seventeen million, seventy thousand, seventy".