120021220199 has 4 divisors (see below), whose sum is σ = 121258552464. Its totient is φ = 118783887936.

The previous prime is 120021220117. The next prime is 120021220211. The reversal of 120021220199 is 991022120021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120021220199 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 (120021220499) 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, 618665987 + ... + 618666180.

It is an arithmetic number, because the mean of its divisors is an integer number (30314638116).

Almost surely, 2^120021220199 is an apocalyptic number.

120021220199 is a deficient number, since it is larger than the sum of its proper divisors (1237332265).

120021220199 is an equidigital number, since it uses as much as digits as its factorization.

120021220199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237332264.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 120021220199 in words is "one hundred twenty billion, twenty-one million, two hundred twenty thousand, one hundred ninety-nine".