21230122103212 has 36 divisors (see below), whose sum is σ = 40844668821768. Its totient is φ = 9648309563200.

The previous prime is 21230122103209. The next prime is 21230122103219.

21230122103212 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (21230122103219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1288273 + ... + 6642280.

It is an arithmetic number, because the mean of its divisors is an integer number (1134574133938).

Almost surely, 2^{21230122103212} is an apocalyptic number.

21230122103212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21230122103212 is a deficient number, since it is larger than the sum of its proper divisors (19614546718556).

21230122103212 is a wasteful number, since it uses less digits than its factorization.

21230122103212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7936110 (or 7936097 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

It can be divided in two parts, 2123012 and 2103212, that added together give a palindrome (4226224).

The spelling of 21230122103212 in words is "twenty-one trillion, two hundred thirty billion, one hundred twenty-two million, one hundred three thousand, two hundred twelve".