422202442221 has 48 divisors (see below), whose sum is σ = 713312810496. Its totient is φ = 235603232928.

The previous prime is 422202442213. The next prime is 422202442237. The reversal of 422202442221 is 122244202224.

It is not a de Polignac number, because 422202442221 - 2³ = 422202442213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422202442261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18634726 + ... + 18657368.

It is an arithmetic number, because the mean of its divisors is an integer number (14860683552).

Almost surely, 2^422202442221 is an apocalyptic number.

It is an amenable number.

422202442221 is a deficient number, since it is larger than the sum of its proper divisors (291110368275).

422202442221 is a wasteful number, since it uses less digits than its factorization.

422202442221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29582 (or 29579 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 422202442221 its reverse (122244202224), we get a palindrome (544446644445).

The spelling of 422202442221 in words is "four hundred twenty-two billion, two hundred two million, four hundred forty-two thousand, two hundred twenty-one".