210022111112021 has 8 divisors (see below), whose sum is σ = 226622015019960. Its totient is φ = 193485686761152.

The previous prime is 210022111111963. The next prime is 210022111112027. The reversal of 210022111112021 is 120211111220012.

It can be written as a sum of positive squares in 4 ways, for example, as 3177627108100 + 206844484003921 = 1782590^2 + 14382089^2 .

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 210022111112021 - 2¹⁸ = 210022110849877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210022111112027) 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, 15869882390 + ... + 15869895623.

It is an arithmetic number, because the mean of its divisors is an integer number (28327751877495).

Almost surely, 2^{210022111112021} is an apocalyptic number.

It is an amenable number.

210022111112021 is a deficient number, since it is larger than the sum of its proper divisors (16599903907939).

210022111112021 is a wasteful number, since it uses less digits than its factorization.

210022111112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31739778535.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 210022111112021 its reverse (120211111220012), we get a palindrome (330233222332033).

The spelling of 210022111112021 in words is "two hundred ten trillion, twenty-two billion, one hundred eleven million, one hundred twelve thousand, twenty-one".