211222100022012 has 48 divisors (see below), whose sum is σ = 547615776736000. Its totient is φ = 70406990624880.

The previous prime is 211222100021953. The next prime is 211222100022023. The reversal of 211222100022012 is 210220001222112.

It is a happy number.

211222100022012 is a `hidden beast` number, since 211 + 2 + 221 + 0 + 0 + 0 + 220 + 12 = 666.

It is a super-3 number, since 3×211222100022012³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15469239 + ... + 25724337.

Almost surely, 2^{211222100022012} is an apocalyptic number.

It is an amenable number.

211222100022012 is an abundant number, since it is smaller than the sum of its proper divisors (336393676713988).

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

211222100022012 is a wasteful number, since it uses less digits than its factorization.

211222100022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10445823 (or 10445815 counting only the distinct ones).

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

Adding to 211222100022012 its reverse (210220001222112), we get a palindrome (421442101244124).

The spelling of 211222100022012 in words is "two hundred eleven trillion, two hundred twenty-two billion, one hundred million, twenty-two thousand, twelve".