120002020101 has 10 divisors (see below), whose sum is σ = 179262277062. Its totient is φ = 80001346680.

The previous prime is 120002020063. The next prime is 120002020111. The reversal of 120002020101 is 101020200021.

It can be written as a sum of positive squares in only one way, i.e., 110709252900 + 9292767201 = 332730^2 + 96399^2 .

It is not a de Polignac number, because 120002020101 - 2¹⁴ = 120002003717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120002020111) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 740753130 + ... + 740753291.

Almost surely, 2^120002020101 is an apocalyptic number.

It is an amenable number.

120002020101 is a deficient number, since it is larger than the sum of its proper divisors (59260256961).

120002020101 is an equidigital number, since it uses as much as digits as its factorization.

120002020101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481506433 (or 1481506424 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 120002020101 its reverse (101020200021), we get a palindrome (221022220122).

The spelling of 120002020101 in words is "one hundred twenty billion, two million, twenty thousand, one hundred one".