120012121102020 has 192 divisors, whose sum is σ = 385752889589760. Its totient is φ = 27309027852288.

The previous prime is 120012121102001. The next prime is 120012121102033. The reversal of 120012121102020 is 20201121210021.

It is a super-2 number, since 2×120012121102020² (a number of 29 digits) contains 22 as substring.

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 63 ways as a sum of consecutive naturals, for example, 189550417 + ... + 190182503.

It is an arithmetic number, because the mean of its divisors is an integer number (2009129633280).

Almost surely, 2^{120012121102020} is an apocalyptic number.

120012121102020 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 120012121102020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192876444794880).

120012121102020 is an abundant number, since it is smaller than the sum of its proper divisors (265740768487740).

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

120012121102020 is a wasteful number, since it uses less digits than its factorization.

120012121102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634122 (or 634120 counting only the distinct ones).

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

Adding to 120012121102020 its reverse (20201121210021), we get a palindrome (140213242312041).

The spelling of 120012121102020 in words is "one hundred twenty trillion, twelve billion, one hundred twenty-one million, one hundred two thousand, twenty".