2123210211320 has 32 divisors (see below), whose sum is σ = 5211515974320. Its totient is φ = 772076440320.

The previous prime is 2123210211319. The next prime is 2123210211323. The reversal of 2123210211320 is 231120123212.

It is a super-2 number, since 2×2123210211320² (a number of 25 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 2123210211292 and 2123210211301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123210211323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2412738437 + ... + 2412739316.

Almost surely, 2^{2123210211320} is an apocalyptic number.

2123210211320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123210211320 is an abundant number, since it is smaller than the sum of its proper divisors (3088305763000).

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

2123210211320 is a wasteful number, since it uses less digits than its factorization.

2123210211320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4825477775 (or 4825477771 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2123210211320 its reverse (231120123212), we get a palindrome (2354330334532).

The spelling of 2123210211320 in words is "two trillion, one hundred twenty-three billion, two hundred ten million, two hundred eleven thousand, three hundred twenty".