211213133030320 has 40 divisors (see below), whose sum is σ = 519957036316224. Its totient is φ = 79515532434432.

The previous prime is 211213133030309. The next prime is 211213133030323. The reversal of 211213133030320 is 23030331312112.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×211213133030320² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211213133030323) 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, 77651885784 + ... + 77651888503.

Almost surely, 2^{211213133030320} is an apocalyptic number.

211213133030320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211213133030320 is an abundant number, since it is smaller than the sum of its proper divisors (308743903285904).

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

211213133030320 is a wasteful number, since it uses less digits than its factorization.

211213133030320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155303774317 (or 155303774311 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 211213133030320 its reverse (23030331312112), we get a palindrome (234243464342432).

The spelling of 211213133030320 in words is "two hundred eleven trillion, two hundred thirteen billion, one hundred thirty-three million, thirty thousand, three hundred twenty".