211220210111330 has 32 divisors (see below), whose sum is σ = 434681012058624. Its totient is φ = 72389880161856.

The previous prime is 211220210111329. The next prime is 211220210111347. The reversal of 211220210111330 is 33111012022112.

It is a super-2 number, since 2×211220210111330² (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 15 ways as a sum of consecutive naturals, for example, 593103857 + ... + 593459876.

It is an arithmetic number, because the mean of its divisors is an integer number (13583781626832).

Almost surely, 2^{211220210111330} is an apocalyptic number.

211220210111330 is an abundant number, since it is smaller than the sum of its proper divisors (223460801947294).

211220210111330 is a wasteful number, since it uses less digits than its factorization.

211220210111330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186566290.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 211220210111330 its reverse (33111012022112), we get a palindrome (244331222133442).

The spelling of 211220210111330 in words is "two hundred eleven trillion, two hundred twenty billion, two hundred ten million, one hundred eleven thousand, three hundred thirty".