211212202212 has 60 divisors (see below), whose sum is σ = 602345920176. Its totient is φ = 64003696560.

The previous prime is 211212202177. The next prime is 211212202217. The reversal of 211212202212 is 212202212112.

It is a happy number.

211212202212 is a `hidden beast` number, since 211 + 21 + 220 + 2 + 212 = 666.

It is a super-2 number, since 2×211212202212² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (211212202217) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29627778 + ... + 29634905.

Almost surely, 2^211212202212 is an apocalyptic number.

211212202212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211212202212 is an abundant number, since it is smaller than the sum of its proper divisors (391133717964).

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

211212202212 is a wasteful number, since it uses less digits than its factorization.

211212202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59262710 (or 59262699 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 211212202212 its reverse (212202212112), we get a palindrome (423414414324).

The spelling of 211212202212 in words is "two hundred eleven billion, two hundred twelve million, two hundred two thousand, two hundred twelve".