211212210104 has 16 divisors (see below), whose sum is σ = 452597593200. Its totient is φ = 90519518592.

The previous prime is 211212210103. The next prime is 211212210113. The reversal of 211212210104 is 401012212112.

It is a super-2 number, since 2×211212210104² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211212210103) 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, 1885823249 + ... + 1885823360.

It is an arithmetic number, because the mean of its divisors is an integer number (28287349575).

Almost surely, 2^211212210104 is an apocalyptic number.

It is an amenable number.

211212210104 is an abundant number, since it is smaller than the sum of its proper divisors (241385383096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211212210104 is a wasteful number, since it uses less digits than its factorization.

211212210104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3771646622 (or 3771646618 counting only the distinct ones).

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

Adding to 211212210104 its reverse (401012212112), we get a palindrome (612224422216).

The spelling of 211212210104 in words is "two hundred eleven billion, two hundred twelve million, two hundred ten thousand, one hundred four".