211220013301320 has 128 divisors (see below), whose sum is σ = 643804033622400. Its totient is φ = 55425443014656.

The previous prime is 211220013301181. The next prime is 211220013301333. The reversal of 211220013301320 is 23103310022112.

211220013301320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211220013301320² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6485275 + ... + 21552234.

It is an arithmetic number, because the mean of its divisors is an integer number (5029719012675).

Almost surely, 2^{211220013301320} is an apocalyptic number.

211220013301320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211220013301320 is an abundant number, since it is smaller than the sum of its proper divisors (432584020321080).

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

211220013301320 is a wasteful number, since it uses less digits than its factorization.

211220013301320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28038527 (or 28038523 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 211220013301320 its reverse (23103310022112), we get a palindrome (234323323323432).

The spelling of 211220013301320 in words is "two hundred eleven trillion, two hundred twenty billion, thirteen million, three hundred one thousand, three hundred twenty".