21419311292412 has 48 divisors (see below), whose sum is σ = 54535000367232. Its totient is φ = 6489138834880.

The previous prime is 21419311292411. The next prime is 21419311292417. The reversal of 21419311292412 is 21429211391412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21419311292411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18968658 + ... + 20066105.

It is an arithmetic number, because the mean of its divisors is an integer number (1136145840984).

Almost surely, 2^{21419311292412} is an apocalyptic number.

21419311292412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21419311292412 is an abundant number, since it is smaller than the sum of its proper divisors (33115689074820).

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

21419311292412 is a wasteful number, since it uses less digits than its factorization.

21419311292412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39038938 (or 39038936 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

It can be divided in two parts, 2141931 and 1292412, that added together give a palindrome (3434343).

The spelling of 21419311292412 in words is "twenty-one trillion, four hundred nineteen billion, three hundred eleven million, two hundred ninety-two thousand, four hundred twelve".