1210110210021 has 16 divisors (see below), whose sum is σ = 1616441904000. Its totient is φ = 805259777088.

The previous prime is 1210110210019. The next prime is 1210110210103. The reversal of 1210110210021 is 1200120110121.

It is not a de Polignac number, because 1210110210021 - 2¹ = 1210110210019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210110209979 and 1210110210006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210110210521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11442775 + ... + 11548043.

It is an arithmetic number, because the mean of its divisors is an integer number (101027619000).

Almost surely, 2^{1210110210021} is an apocalyptic number.

It is an amenable number.

1210110210021 is a deficient number, since it is larger than the sum of its proper divisors (406331693979).

1210110210021 is a wasteful number, since it uses less digits than its factorization.

1210110210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112268.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1210110210021 its reverse (1200120110121), we get a palindrome (2410230320142).

The spelling of 1210110210021 in words is "one trillion, two hundred ten billion, one hundred ten million, two hundred ten thousand, twenty-one".