120022205551 has 4 divisors (see below), whose sum is σ = 120200545312. Its totient is φ = 119843865792.

The previous prime is 120022205521. The next prime is 120022205557. The reversal of 120022205551 is 155502220021.

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

It is a cyclic number.

It is not a de Polignac number, because 120022205551 - 2⁷ = 120022205423 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 (120022205557) 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, 89168871 + ... + 89170216.

It is an arithmetic number, because the mean of its divisors is an integer number (30050136328).

Almost surely, 2^120022205551 is an apocalyptic number.

120022205551 is a deficient number, since it is larger than the sum of its proper divisors (178339761).

120022205551 is an equidigital number, since it uses as much as digits as its factorization.

120022205551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178339760.

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 120022205551 its reverse (155502220021), we get a palindrome (275524425572).

The spelling of 120022205551 in words is "one hundred twenty billion, twenty-two million, two hundred five thousand, five hundred fifty-one".