21401211210412 has 48 divisors (see below), whose sum is σ = 41322584540160. Its totient is φ = 9616971196800.

The previous prime is 21401211210349. The next prime is 21401211210439.

21401211210412 is nontrivially palindromic in base 10.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24025837 + ... + 24900667.

It is an arithmetic number, because the mean of its divisors is an integer number (860887177920).

Almost surely, 2^{21401211210412} is an apocalyptic number.

21401211210412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21401211210412 is a deficient number, since it is larger than the sum of its proper divisors (19921373329748).

21401211210412 is a wasteful number, since it uses less digits than its factorization.

21401211210412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881182 (or 881180 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

It can be divided in two parts, 2140121 and 1210412, that added together give a palindrome (3350533).

The spelling of 21401211210412 in words is "twenty-one trillion, four hundred one billion, two hundred eleven million, two hundred ten thousand, four hundred twelve".