20212111422123 has 64 divisors (see below), whose sum is σ = 28256823006720. Its totient is φ = 12838097866752.

The previous prime is 20212111422103. The next prime is 20212111422127. The reversal of 20212111422123 is 32122411121202.

It is not a de Polignac number, because 20212111422123 - 2¹⁸ = 20212111159979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20212111422093 and 20212111422102.

It is not an unprimeable number, because it can be changed into a prime (20212111422127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5213336061 + ... + 5213339937.

It is an arithmetic number, because the mean of its divisors is an integer number (441512859480).

Almost surely, 2^{20212111422123} is an apocalyptic number.

20212111422123 is a deficient number, since it is larger than the sum of its proper divisors (8044711584597).

20212111422123 is a wasteful number, since it uses less digits than its factorization.

20212111422123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6876.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 20212111422123 its reverse (32122411121202), we get a palindrome (52334522543325).

The spelling of 20212111422123 in words is "twenty trillion, two hundred twelve billion, one hundred eleven million, four hundred twenty-two thousand, one hundred twenty-three".