211012202228 has 24 divisors (see below), whose sum is σ = 399312208512. Its totient is φ = 97187095424.

The previous prime is 211012202227. The next prime is 211012202251. The reversal of 211012202228 is 822202210112.

It is a happy number.

211012202228 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211012202228² (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 (211012202227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33008726 + ... + 33015117.

It is an arithmetic number, because the mean of its divisors is an integer number (16638008688).

Almost surely, 2^211012202228 is an apocalyptic number.

It is an amenable number.

211012202228 is a deficient number, since it is larger than the sum of its proper divisors (188300006284).

211012202228 is a wasteful number, since it uses less digits than its factorization.

211012202228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66023911 (or 66023909 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The spelling of 211012202228 in words is "two hundred eleven billion, twelve million, two hundred two thousand, two hundred twenty-eight".