210112021001 has 2 divisors, whose sum is σ = 210112021002. Its totient is φ = 210112021000.

The previous prime is 210112020991. The next prime is 210112021127. The reversal of 210112021001 is 100120211012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158164494601 + 51947526400 = 397699^2 + 227920^2 .

It is a cyclic number.

It is not a de Polignac number, because 210112021001 - 2³⁴ = 192932151817 is a prime.

It is a super-2 number, since 2×210112021001² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (210112021501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105056010500 + 105056010501.

It is an arithmetic number, because the mean of its divisors is an integer number (105056010501).

Almost surely, 2^210112021001 is an apocalyptic number.

It is an amenable number.

210112021001 is a deficient number, since it is larger than the sum of its proper divisors (1).

210112021001 is an equidigital number, since it uses as much as digits as its factorization.

210112021001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210112021001 its reverse (100120211012), we get a palindrome (310232232013).

The spelling of 210112021001 in words is "two hundred ten billion, one hundred twelve million, twenty-one thousand, one".