212025521205 has 12 divisors (see below), whose sum is σ = 367510903500. Its totient is φ = 113080277952.

The previous prime is 212025521161. The next prime is 212025521251. The reversal of 212025521205 is 502125520212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 101892470436 + 110133050769 = 319206^2 + 331863^2 .

It is not a de Polignac number, because 212025521205 - 2¹¹ = 212025519157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2355839080 + ... + 2355839169.

It is an arithmetic number, because the mean of its divisors is an integer number (30625908625).

Almost surely, 2^212025521205 is an apocalyptic number.

It is an amenable number.

212025521205 is a deficient number, since it is larger than the sum of its proper divisors (155485382295).

212025521205 is a wasteful number, since it uses less digits than its factorization.

212025521205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4711678260 (or 4711678257 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 212025521205 in words is "two hundred twelve billion, twenty-five million, five hundred twenty-one thousand, two hundred five".