2120312211000 has 64 divisors (see below), whose sum is σ = 6615374107680. Its totient is φ = 565416588800.

The previous prime is 2120312210993. The next prime is 2120312211011. The reversal of 2120312211000 is 1122130212.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 353382369 + ... + 353388368.

Almost surely, 2^{2120312211000} is an apocalyptic number.

2120312211000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120312211000 is an abundant number, since it is smaller than the sum of its proper divisors (4495061896680).

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

2120312211000 is a wasteful number, since it uses less digits than its factorization.

2120312211000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706770761 (or 706770747 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2120312211000 its reverse (1122130212), we get a palindrome (2121434341212).

The spelling of 2120312211000 in words is "two trillion, one hundred twenty billion, three hundred twelve million, two hundred eleven thousand".