21414121140 has 48 divisors (see below), whose sum is σ = 60804051840. Its totient is φ = 5630002560.

The previous prime is 21414121123. The next prime is 21414121177. The reversal of 21414121140 is 4112141412.

It is a congruent number.

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, 2509135 + ... + 2517654.

It is an arithmetic number, because the mean of its divisors is an integer number (1266751080).

Almost surely, 2^21414121140 is an apocalyptic number.

21414121140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21414121140 is an abundant number, since it is smaller than the sum of its proper divisors (39389930700).

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

21414121140 is a wasteful number, since it uses less digits than its factorization.

21414121140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5026872 (or 5026870 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 21414121140 its reverse (4112141412), we get a palindrome (25526262552).

The spelling of 21414121140 in words is "twenty-one billion, four hundred fourteen million, one hundred twenty-one thousand, one hundred forty".