211221122022112 has 24 divisors (see below), whose sum is σ = 415886064363000. Its totient is φ = 105599264406144.

The previous prime is 211221122022089. The next prime is 211221122022151. The reversal of 211221122022112 is 211220221122112.

It is a super-2 number, since 2×211221122022112² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352715062 + ... + 353313397.

It is an arithmetic number, because the mean of its divisors is an integer number (17328586015125).

Almost surely, 2^{211221122022112} is an apocalyptic number.

It is an amenable number.

211221122022112 is a deficient number, since it is larger than the sum of its proper divisors (204664942340888).

211221122022112 is an equidigital number, since it uses as much as digits as its factorization.

211221122022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706037818 (or 706037810 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 211221122022112 its reverse (211220221122112), we get a palindrome (422441343144224).

The spelling of 211221122022112 in words is "two hundred eleven trillion, two hundred twenty-one billion, one hundred twenty-two million, twenty-two thousand, one hundred twelve".