120102011210021 has 4 divisors (see below), whose sum is σ = 120375592101600. Its totient is φ = 119828430318444.

The previous prime is 120102011210011. The next prime is 120102011210029. The reversal of 120102011210021 is 120012110201021.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120102011210021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120102011209978 and 120102011210005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120102011210029) 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, 136790445131 + ... + 136790446008.

It is an arithmetic number, because the mean of its divisors is an integer number (30093898025400).

Almost surely, 2^{120102011210021} is an apocalyptic number.

It is an amenable number.

120102011210021 is a deficient number, since it is larger than the sum of its proper divisors (273580891579).

120102011210021 is an equidigital number, since it uses as much as digits as its factorization.

120102011210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273580891578.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 120102011210021 its reverse (120012110201021), we get a palindrome (240114121411042).

The spelling of 120102011210021 in words is "one hundred twenty trillion, one hundred two billion, eleven million, two hundred ten thousand, twenty-one".