1321101122211 has 64 divisors (see below), whose sum is σ = 2112793280640. Its totient is φ = 811038666240.

The previous prime is 1321101122203. The next prime is 1321101122233. The reversal of 1321101122211 is 1122211011231.

It is a happy number.

1321101122211 is a `hidden beast` number, since 1 + 321 + 10 + 1 + 122 + 211 = 666.

It is not a de Polignac number, because 1321101122211 - 2³ = 1321101122203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321101122281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 328548381 + ... + 328552401.

It is an arithmetic number, because the mean of its divisors is an integer number (33012395010).

Almost surely, 2^{1321101122211} is an apocalyptic number.

1321101122211 is a deficient number, since it is larger than the sum of its proper divisors (791692158429).

1321101122211 is a wasteful number, since it uses less digits than its factorization.

1321101122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6053 (or 6047 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1321101122211 its reverse (1122211011231), we get a palindrome (2443312133442).

The spelling of 1321101122211 in words is "one trillion, three hundred twenty-one billion, one hundred one million, one hundred twenty-two thousand, two hundred eleven".