212021100311 has 2 divisors, whose sum is σ = 212021100312. Its totient is φ = 212021100310.

The previous prime is 212021100287. The next prime is 212021100367. The reversal of 212021100311 is 113001120212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212021100311 - 2²² = 212016906007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021103311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010550155 + 106010550156.

It is an arithmetic number, because the mean of its divisors is an integer number (106010550156).

Almost surely, 2^212021100311 is an apocalyptic number.

212021100311 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021100311 is an equidigital number, since it uses as much as digits as its factorization.

212021100311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 212021100311 its reverse (113001120212), we get a palindrome (325022220523).

The spelling of 212021100311 in words is "two hundred twelve billion, twenty-one million, one hundred thousand, three hundred eleven".