211112122121022 has 64 divisors (see below), whose sum is σ = 449619037194240. Its totient is φ = 65853129076224.

The previous prime is 211112122120997. The next prime is 211112122121057. The reversal of 211112122121022 is 220121221211112.

211112122121022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 211112122121022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9287943 + ... + 22549725.

It is an arithmetic number, because the mean of its divisors is an integer number (7025297456160).

Almost surely, 2^{211112122121022} is an apocalyptic number.

211112122121022 is an abundant number, since it is smaller than the sum of its proper divisors (238506915073218).

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

211112122121022 is a wasteful number, since it uses less digits than its factorization.

211112122121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13262697.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 211112122121022 its reverse (220121221211112), we get a palindrome (431233343332134).

The spelling of 211112122121022 in words is "two hundred eleven trillion, one hundred twelve billion, one hundred twenty-two million, one hundred twenty-one thousand, twenty-two".