1210210112020 has 120 divisors (see below), whose sum is σ = 3146548212864. Its totient is φ = 383010286464.

The previous prime is 1210210111973. The next prime is 1210210112047. The reversal of 1210210112020 is 202110120121.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3847209 + ... + 4149871.

Almost surely, 2^{1210210112020} is an apocalyptic number.

1210210112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210210112020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1573274106432).

1210210112020 is an abundant number, since it is smaller than the sum of its proper divisors (1936338100844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1210210112020 is an equidigital number, since it uses as much as digits as its factorization.

1210210112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302731 (or 302690 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1210210112020 its reverse (202110120121), we get a palindrome (1412320232141).

The spelling of 1210210112020 in words is "one trillion, two hundred ten billion, two hundred ten million, one hundred twelve thousand, twenty".