420121222104 has 16 divisors (see below), whose sum is σ = 1050303055320. Its totient is φ = 140040407360.

The previous prime is 420121222091. The next prime is 420121222127. The reversal of 420121222104 is 401222121024.

It is a congruent number.

It is an unprimeable number.

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, 8752525437 + ... + 8752525484.

Almost surely, 2^420121222104 is an apocalyptic number.

It is an amenable number.

420121222104 is an abundant number, since it is smaller than the sum of its proper divisors (630181833216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420121222104 is a wasteful number, since it uses less digits than its factorization.

420121222104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17505050930 (or 17505050926 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 420121222104 its reverse (401222121024), we get a palindrome (821343343128).

The spelling of 420121222104 in words is "four hundred twenty billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred four".