212021101311 has 32 divisors (see below), whose sum is σ = 297919641600. Its totient is φ = 133938255360.

The previous prime is 212021101219. The next prime is 212021101363. The reversal of 212021101311 is 113101120212.

It is not a de Polignac number, because 212021101311 - 2⁷ = 212021101183 is a prime.

It is a super-2 number, since 2×212021101311² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021100311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1055431 + ... + 1240151.

It is an arithmetic number, because the mean of its divisors is an integer number (9309988800).

Almost surely, 2^212021101311 is an apocalyptic number.

212021101311 is a deficient number, since it is larger than the sum of its proper divisors (85898540289).

212021101311 is a wasteful number, since it uses less digits than its factorization.

212021101311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184999.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 212021101311 its reverse (113101120212), we get a palindrome (325122221523).

The spelling of 212021101311 in words is "two hundred twelve billion, twenty-one million, one hundred one thousand, three hundred eleven".