2121440213000 has 64 divisors (see below), whose sum is σ = 5180003637120. Its totient is φ = 811681464000.

The previous prime is 2121440212981. The next prime is 2121440213027. The reversal of 2121440213000 is 3120441212.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 46095266 + ... + 46141265.

It is an arithmetic number, because the mean of its divisors is an integer number (80937556830).

Almost surely, 2^{2121440213000} is an apocalyptic number.

2121440213000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121440213000 is an abundant number, since it is smaller than the sum of its proper divisors (3058563424120).

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

2121440213000 is a wasteful number, since it uses less digits than its factorization.

2121440213000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92236575 (or 92236561 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2121440213000 its reverse (3120441212), we get a palindrome (2124560654212).

The spelling of 2121440213000 in words is "two trillion, one hundred twenty-one billion, four hundred forty million, two hundred thirteen thousand".