211222002112 has 56 divisors (see below), whose sum is σ = 467881362432. Its totient is φ = 93777196800.

The previous prime is 211222002007. The next prime is 211222002113. The reversal of 211222002112 is 211200222112.

It is a happy number.

It is a super-2 number, since 2×211222002112² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222002113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3458464 + ... + 3519007.

Almost surely, 2^211222002112 is an apocalyptic number.

211222002112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211222002112 is an abundant number, since it is smaller than the sum of its proper divisors (256659360320).

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

211222002112 is a wasteful number, since it uses less digits than its factorization.

211222002112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6977537 (or 6977527 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 211222002112 its reverse (211200222112), we get a palindrome (422422224224).

The spelling of 211222002112 in words is "two hundred eleven billion, two hundred twenty-two million, two thousand, one hundred twelve".