120000021958 has 8 divisors (see below), whose sum is σ = 180001566360. Its totient is φ = 59999499840.

The previous prime is 120000021907. The next prime is 120000021959. The reversal of 120000021958 is 859120000021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120000021959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201078 + ... + 529558.

It is an arithmetic number, because the mean of its divisors is an integer number (22500195795).

Almost surely, 2^120000021958 is an apocalyptic number.

120000021958 is a deficient number, since it is larger than the sum of its proper divisors (60001544402).

120000021958 is a wasteful number, since it uses less digits than its factorization.

120000021958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511142.

The product of its (nonzero) digits is 1440, while the sum is 28.

Adding to 120000021958 its reverse (859120000021), we get a palindrome (979120021979).

The spelling of 120000021958 in words is "one hundred twenty billion, twenty-one thousand, nine hundred fifty-eight".