420122220986 has 8 divisors (see below), whose sum is σ = 678658972404. Its totient is φ = 193902563520.

The previous prime is 420122220913. The next prime is 420122221021. The reversal of 420122220986 is 689022221024.

It can be written as a sum of positive squares in 2 ways, for example, as 418698290761 + 1423930225 = 647069^2 + 37735^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8079273455 + ... + 8079273506.

Almost surely, 2^420122220986 is an apocalyptic number.

420122220986 is a deficient number, since it is larger than the sum of its proper divisors (258536751418).

420122220986 is a wasteful number, since it uses less digits than its factorization.

420122220986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16158546976.

The product of its (nonzero) digits is 55296, while the sum is 38.

Adding to 420122220986 its sum of digits (38), we get a palindrome (420122221024).

The spelling of 420122220986 in words is "four hundred twenty billion, one hundred twenty-two million, two hundred twenty thousand, nine hundred eighty-six".