2121403101400 has 96 divisors (see below), whose sum is σ = 5495131860480. Its totient is φ = 755006096000.

The previous prime is 2121403101397. The next prime is 2121403101431. The reversal of 2121403101400 is 41013041212.

It is a super-2 number, since 2×2121403101400² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10154836 + ... + 10361635.

It is an arithmetic number, because the mean of its divisors is an integer number (57240956880).

Almost surely, 2^{2121403101400} is an apocalyptic number.

2121403101400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121403101400 is an abundant number, since it is smaller than the sum of its proper divisors (3373728759080).

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

2121403101400 is a wasteful number, since it uses less digits than its factorization.

2121403101400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20516545 (or 20516536 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2121403101400 its reverse (41013041212), we get a palindrome (2162416142612).

The spelling of 2121403101400 in words is "two trillion, one hundred twenty-one billion, four hundred three million, one hundred one thousand, four hundred".