211010021223101 has 4 divisors (see below), whose sum is σ = 211465766409792. Its totient is φ = 210554276036412.

The previous prime is 211010021223077. The next prime is 211010021223143. The reversal of 211010021223101 is 101322120010112.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211010021223101 - 2⁶ = 211010021223037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211010021223101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211010021223151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227872592651 + ... + 227872593576.

It is an arithmetic number, because the mean of its divisors is an integer number (52866441602448).

Almost surely, 2^{211010021223101} is an apocalyptic number.

It is an amenable number.

211010021223101 is a deficient number, since it is larger than the sum of its proper divisors (455745186691).

211010021223101 is an equidigital number, since it uses as much as digits as its factorization.

211010021223101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455745186690.

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

Adding to 211010021223101 its reverse (101322120010112), we get a palindrome (312332141233213).

The spelling of 211010021223101 in words is "two hundred eleven trillion, ten billion, twenty-one million, two hundred twenty-three thousand, one hundred one".