211020220122211 has 16 divisors (see below), whose sum is σ = 218365723332000. Its totient is φ = 203679320544000.

The previous prime is 211020220122197. The next prime is 211020220122233. The reversal of 211020220122211 is 112221022020112.

It is a cyclic number.

It is not a de Polignac number, because 211020220122211 - 2⁹ = 211020220121699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211020220122011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1890111951 + ... + 1890223591.

It is an arithmetic number, because the mean of its divisors is an integer number (13647857708250).

Almost surely, 2^{211020220122211} is an apocalyptic number.

211020220122211 is a deficient number, since it is larger than the sum of its proper divisors (7345503209789).

211020220122211 is a wasteful number, since it uses less digits than its factorization.

211020220122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131670.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 211020220122211 its reverse (112221022020112), we get a palindrome (323241242142323).

The spelling of 211020220122211 in words is "two hundred eleven trillion, twenty billion, two hundred twenty million, one hundred twenty-two thousand, two hundred eleven".