120102012101 has 4 divisors (see below), whose sum is σ = 120705540000. Its totient is φ = 119498484204.

The previous prime is 120102012083. The next prime is 120102012157. The reversal of 120102012101 is 101210201021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101210201021 = 249779 ⋅405199.

It is a cyclic number.

It is not a de Polignac number, because 120102012101 - 2²² = 120097817797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120102012161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301763651 + ... + 301764048.

It is an arithmetic number, because the mean of its divisors is an integer number (30176385000).

Almost surely, 2^120102012101 is an apocalyptic number.

It is an amenable number.

120102012101 is a deficient number, since it is larger than the sum of its proper divisors (603527899).

120102012101 is an equidigital number, since it uses as much as digits as its factorization.

120102012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603527898.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 120102012101 its reverse (101210201021), we get a palindrome (221312213122).

It can be divided in two parts, 1201020 and 12101, that added together give a palindrome (1213121).

The spelling of 120102012101 in words is "one hundred twenty billion, one hundred two million, twelve thousand, one hundred one".