120000021959 has 2 divisors, whose sum is σ = 120000021960. Its totient is φ = 120000021958.

The previous prime is 120000021907. The next prime is 120000022033. The reversal of 120000021959 is 959120000021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120000021959 - 2⁸ = 120000021703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120000621959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60000010979 + 60000010980.

It is an arithmetic number, because the mean of its divisors is an integer number (60000010980).

Almost surely, 2^120000021959 is an apocalyptic number.

120000021959 is a deficient number, since it is larger than the sum of its proper divisors (1).

120000021959 is an equidigital number, since it uses as much as digits as its factorization.

120000021959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 29.

The spelling of 120000021959 in words is "one hundred twenty billion, twenty-one thousand, nine hundred fifty-nine".