211121021313331 has 8 divisors (see below), whose sum is σ = 211133585039328. Its totient is φ = 211108458000000.

The previous prime is 211121021313193. The next prime is 211121021313421. The reversal of 211121021313331 is 133313120121112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211121021313331 - 2³⁷ = 210983582359859 is a prime.

It is a super-2 number, since 2×211121021313331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211121021313296 and 211121021313305.

It is not an unprimeable number, because it can be changed into a prime (211121021313131) 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, 1947538731 + ... + 1947647131.

It is an arithmetic number, because the mean of its divisors is an integer number (26391698129916).

Almost surely, 2^{211121021313331} is an apocalyptic number.

211121021313331 is a deficient number, since it is larger than the sum of its proper divisors (12563725997).

211121021313331 is a wasteful number, since it uses less digits than its factorization.

211121021313331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206333.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 211121021313331 its reverse (133313120121112), we get a palindrome (344434141434443).

The spelling of 211121021313331 in words is "two hundred eleven trillion, one hundred twenty-one billion, twenty-one million, three hundred thirteen thousand, three hundred thirty-one".