211321010 has 16 divisors (see below), whose sum is σ = 396916416. Its totient is φ = 80853168.

The previous prime is 211321009. The next prime is 211321031. The reversal of 211321010 is 10123112.

It is a junction number, because it is equal to n+sod(n) for n = 211320982 and 211321000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459164 + ... + 459623.

It is an arithmetic number, because the mean of its divisors is an integer number (24807276).

Almost surely, 2^211321010 is an apocalyptic number.

211321010 is a deficient number, since it is larger than the sum of its proper divisors (185595406).

211321010 is a wasteful number, since it uses less digits than its factorization.

211321010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918817.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 211321010 is about 14536.8844667625. The cubic root of 211321010 is about 595.6359370669.

Adding to 211321010 its reverse (10123112), we get a palindrome (221444122).

The spelling of 211321010 in words is "two hundred eleven million, three hundred twenty-one thousand, ten".