120220010021009 has 4 divisors (see below), whose sum is σ = 120939890320704. Its totient is φ = 119500129721316.

The previous prime is 120220010020973. The next prime is 120220010021053. The reversal of 120220010021009 is 900120010022021.

It is a happy number.

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 not a de Polignac number, because 120220010021009 - 2⁸ = 120220010020753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120220010026009) 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, 359940149597 + ... + 359940149930.

It is an arithmetic number, because the mean of its divisors is an integer number (30234972580176).

Almost surely, 2^{120220010021009} is an apocalyptic number.

It is an amenable number.

120220010021009 is a deficient number, since it is larger than the sum of its proper divisors (719880299695).

120220010021009 is an equidigital number, since it uses as much as digits as its factorization.

120220010021009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719880299694.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 120220010021009 in words is "one hundred twenty trillion, two hundred twenty billion, ten million, twenty-one thousand, nine".