2121231011000 has 32 divisors (see below), whose sum is σ = 4963680568080. Its totient is φ = 848492404000.

The previous prime is 2121231010993. The next prime is 2121231011047. The reversal of 2121231011000 is 1101321212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1060614506 + ... + 1060616505.

Almost surely, 2^{2121231011000} is an apocalyptic number.

2121231011000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121231011000 is an abundant number, since it is smaller than the sum of its proper divisors (2842449557080).

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

2121231011000 is a wasteful number, since it uses less digits than its factorization.

2121231011000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121231032 (or 2121231018 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 2121231011000 its reverse (1101321212), we get a palindrome (2122332332212).

The spelling of 2121231011000 in words is "two trillion, one hundred twenty-one billion, two hundred thirty-one million, eleven thousand".