121002210211020 has 24 divisors (see below), whose sum is σ = 338806188591024. Its totient is φ = 32267256056256.

The previous prime is 121002210210919. The next prime is 121002210211151. The reversal of 121002210211020 is 20112012200121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1008351751699 + ... + 1008351751818.

It is an arithmetic number, because the mean of its divisors is an integer number (14116924524626).

Almost surely, 2^{121002210211020} is an apocalyptic number.

121002210211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002210211020 is an abundant number, since it is smaller than the sum of its proper divisors (217803978380004).

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

121002210211020 is a wasteful number, since it uses less digits than its factorization.

121002210211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016703503529 (or 2016703503527 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121002210211020 its reverse (20112012200121), we get a palindrome (141114222411141).

The spelling of 121002210211020 in words is "one hundred twenty-one trillion, two billion, two hundred ten million, two hundred eleven thousand, twenty".