211513012 has 12 divisors (see below), whose sum is σ = 370275136. Its totient is φ = 105720120.

The previous prime is 211512989. The next prime is 211513013. The reversal of 211513012 is 210315112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211513013) 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, 7243 + ... + 21805.

Almost surely, 2^211513012 is an apocalyptic number.

It is an amenable number.

211513012 is a deficient number, since it is larger than the sum of its proper divisors (158762124).

211513012 is a wasteful number, since it uses less digits than its factorization.

211513012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18198 (or 18196 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 211513012 is about 14543.4869271437. The cubic root of 211513012 is about 595.8162767195.

Adding to 211513012 its reverse (210315112), we get a palindrome (421828124).

The spelling of 211513012 in words is "two hundred eleven million, five hundred thirteen thousand, twelve".