212013121252 has 12 divisors (see below), whose sum is σ = 371031042816. Its totient is φ = 106004251880.

The previous prime is 212013121237. The next prime is 212013121253. The reversal of 212013121252 is 252121310212.

It is not an unprimeable number, because it can be changed into a prime (212013121253) 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, 361624 + ... + 744847.

It is an arithmetic number, because the mean of its divisors is an integer number (30919253568).

Almost surely, 2^212013121252 is an apocalyptic number.

It is an amenable number.

212013121252 is a deficient number, since it is larger than the sum of its proper divisors (159017921564).

212013121252 is a wasteful number, since it uses less digits than its factorization.

212013121252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154378 (or 1154376 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 212013121252 its reverse (252121310212), we get a palindrome (464134431464).

The spelling of 212013121252 in words is "two hundred twelve billion, thirteen million, one hundred twenty-one thousand, two hundred fifty-two".