21143211234112 has 56 divisors (see below), whose sum is σ = 45771866413920. Its totient is φ = 9610210536960.

The previous prime is 21143211234083. The next prime is 21143211234127.

21143211234112 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19940778 + ... + 20974294.

Almost surely, 2^{21143211234112} is an apocalyptic number.

21143211234112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21143211234112 is an abundant number, since it is smaller than the sum of its proper divisors (24628655179808).

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

21143211234112 is a wasteful number, since it uses less digits than its factorization.

21143211234112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062599 (or 1062589 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

It can be divided in two parts, 2114321 and 1234112, that added together give a palindrome (3348433).

The spelling of 21143211234112 in words is "twenty-one trillion, one hundred forty-three billion, two hundred eleven million, two hundred thirty-four thousand, one hundred twelve".