211212102220010 has 16 divisors (see below), whose sum is σ = 380245349023272. Its totient is φ = 84470715326400.

The previous prime is 211212102219883. The next prime is 211212102220051. The reversal of 211212102220010 is 10022201212112.

It can be written as a sum of positive squares in 4 ways, for example, as 41985488303641 + 169226613916369 = 6479621^2 + 13008713^2 .

It is a super-2 number, since 2×211212102220010² (a number of 29 digits) contains 22 as substring.

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, 1765632401 + ... + 1765752020.

Almost surely, 2^{211212102220010} is an apocalyptic number.

211212102220010 is a deficient number, since it is larger than the sum of its proper divisors (169033246803262).

211212102220010 is a wasteful number, since it uses less digits than its factorization.

211212102220010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3531390409.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211212102220010 its reverse (10022201212112), we get a palindrome (221234303432122).

The spelling of 211212102220010 in words is "two hundred eleven trillion, two hundred twelve billion, one hundred two million, two hundred twenty thousand, ten".