211132001021021 has 2 divisors, whose sum is σ = 211132001021022. Its totient is φ = 211132001021020.

The previous prime is 211132001021003. The next prime is 211132001021069. The reversal of 211132001021021 is 120120100231112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181174561212100 + 29957439808921 = 13460110^2 + 5473339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211132001021021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211132001021321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105566000510510 + 105566000510511.

It is an arithmetic number, because the mean of its divisors is an integer number (105566000510511).

Almost surely, 2^{211132001021021} is an apocalyptic number.

It is an amenable number.

211132001021021 is a deficient number, since it is larger than the sum of its proper divisors (1).

211132001021021 is an equidigital number, since it uses as much as digits as its factorization.

211132001021021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 211132001021021 its reverse (120120100231112), we get a palindrome (331252101252133).

The spelling of 211132001021021 in words is "two hundred eleven trillion, one hundred thirty-two billion, one million, twenty-one thousand, twenty-one".