211216010 has 32 divisors (see below), whose sum is σ = 394852752. Its totient is φ = 81285120.

The previous prime is 211216003. The next prime is 211216021. The reversal of 211216010 is 10612112.

211216010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 118613881 + 92602129 = 10891^2 + 9623^2 .

It is a super-2 number, since 2×211216010² = 89224405760640200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26402 + ... + 33458.

Almost surely, 2^211216010 is an apocalyptic number.

211216010 is a deficient number, since it is larger than the sum of its proper divisors (183636742).

211216010 is a wasteful number, since it uses less digits than its factorization.

211216010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7178.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 211216010 is about 14533.2725151633. The cubic root of 211216010 is about 595.5372686403.

Adding to 211216010 its reverse (10612112), we get a palindrome (221828122).

The spelling of 211216010 in words is "two hundred eleven million, two hundred sixteen thousand, ten".