210120110122021 has 32 divisors (see below), whose sum is σ = 241565026830336. Its totient is φ = 180897569160000.

The previous prime is 210120110121997. The next prime is 210120110122121. The reversal of 210120110122021 is 120221011021012.

It is not a de Polignac number, because 210120110122021 - 2⁵ = 210120110121989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210120110121986 and 210120110122004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210120110122121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 790246920 + ... + 790512766.

It is an arithmetic number, because the mean of its divisors is an integer number (7548907088448).

Almost surely, 2^{210120110122021} is an apocalyptic number.

It is an amenable number.

210120110122021 is a deficient number, since it is larger than the sum of its proper divisors (31444916708315).

210120110122021 is a wasteful number, since it uses less digits than its factorization.

210120110122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296913.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210120110122021 its reverse (120221011021012), we get a palindrome (330341121143033).

The spelling of 210120110122021 in words is "two hundred ten trillion, one hundred twenty billion, one hundred ten million, one hundred twenty-two thousand, twenty-one".