1210232001021 has 32 divisors (see below), whose sum is σ = 1679696248320. Its totient is φ = 774742334912.

The previous prime is 1210232000993. The next prime is 1210232001061. The reversal of 1210232001021 is 1201002320121.

It is not a de Polignac number, because 1210232001021 - 2¹¹ = 1210231998973 is a prime.

It is a super-2 number, since 2×1210232001021² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210232001061) 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, 20962831 + ... + 21020483.

It is an arithmetic number, because the mean of its divisors is an integer number (52490507760).

Almost surely, 2^{1210232001021} is an apocalyptic number.

It is an amenable number.

1210232001021 is a deficient number, since it is larger than the sum of its proper divisors (469464247299).

1210232001021 is an frugal number, since it uses more digits than its factorization.

1210232001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57862 (or 57756 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1210232001021 its reverse (1201002320121), we get a palindrome (2411234321142).

The spelling of 1210232001021 in words is "one trillion, two hundred ten billion, two hundred thirty-two million, one thousand, twenty-one".