20212111423422 has 32 divisors (see below), whose sum is σ = 45548420117760. Its totient is φ = 6642477931320.

The previous prime is 20212111423417. The next prime is 20212111423433. The reversal of 20212111423422 is 22432411121202.

20212111423422 is a `hidden beast` number, since 2 + 0 + 2 + 1 + 211 + 1 + 4 + 23 + 422 = 666.

It is a super-2 number, since 2×20212111423422² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2635900108 + ... + 2635907775.

It is an arithmetic number, because the mean of its divisors is an integer number (1423388128680).

Almost surely, 2^{20212111423422} is an apocalyptic number.

20212111423422 is an abundant number, since it is smaller than the sum of its proper divisors (25336308694338).

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

20212111423422 is a wasteful number, since it uses less digits than its factorization.

20212111423422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5271807965 (or 5271807959 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 20212111423422 its reverse (22432411121202), we get a palindrome (42644522544624).

The spelling of 20212111423422 in words is "twenty trillion, two hundred twelve billion, one hundred eleven million, four hundred twenty-three thousand, four hundred twenty-two".