1210420113021 has 96 divisors (see below), whose sum is σ = 2085740616960. Its totient is φ = 662106931200.

The previous prime is 1210420112999. The next prime is 1210420113109. The reversal of 1210420113021 is 1203110240121.

1210420113021 is a `hidden beast` number, since 1 + 210 + 420 + 1 + 1 + 30 + 2 + 1 = 666.

It is not a de Polignac number, because 1210420113021 - 2¹⁴ = 1210420096637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210420112985 and 1210420113003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210420163021) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 30095101 + ... + 30135293.

It is an arithmetic number, because the mean of its divisors is an integer number (21726464760).

Almost surely, 2^{1210420113021} is an apocalyptic number.

It is an amenable number.

1210420113021 is a deficient number, since it is larger than the sum of its proper divisors (875320503939).

1210420113021 is a wasteful number, since it uses less digits than its factorization.

1210420113021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40467 (or 40464 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1210420113021 its reverse (1203110240121), we get a palindrome (2413530353142).

The spelling of 1210420113021 in words is "one trillion, two hundred ten billion, four hundred twenty million, one hundred thirteen thousand, twenty-one".