212027505121 has 8 divisors (see below), whose sum is σ = 214012636200. Its totient is φ = 210043100160.

The previous prime is 212027505097. The next prime is 212027505127. The reversal of 212027505121 is 121505720212.

It can be written as a sum of positive squares in 4 ways, for example, as 117950346721 + 94077158400 = 343439^2 + 306720^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212027505121 - 2⁵ = 212027505089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212027505121.

It is not an unprimeable number, because it can be changed into a prime (212027505127) 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, 414315 + ... + 771823.

It is an arithmetic number, because the mean of its divisors is an integer number (26751579525).

Almost surely, 2^212027505121 is an apocalyptic number.

It is an amenable number.

212027505121 is a deficient number, since it is larger than the sum of its proper divisors (1985131079).

212027505121 is a wasteful number, since it uses less digits than its factorization.

212027505121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363059.

The product of its (nonzero) digits is 2800, while the sum is 28.

The spelling of 212027505121 in words is "two hundred twelve billion, twenty-seven million, five hundred five thousand, one hundred twenty-one".