422422220402 has 32 divisors (see below), whose sum is σ = 825730319232. Its totient is φ = 157281963264.

The previous prime is 422422220333. The next prime is 422422220461. The reversal of 422422220402 is 204022224224.

It is a Harshad number since it is a multiple of its sum of digits (26).

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 15 ways as a sum of consecutive naturals, for example, 68261648 + ... + 68267835.

It is an arithmetic number, because the mean of its divisors is an integer number (25804072476).

Almost surely, 2^422422220402 is an apocalyptic number.

422422220402 is a deficient number, since it is larger than the sum of its proper divisors (403308098830).

422422220402 is a wasteful number, since it uses less digits than its factorization.

422422220402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136529522.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 422422220402 its reverse (204022224224), we get a palindrome (626444444626).

The spelling of 422422220402 in words is "four hundred twenty-two billion, four hundred twenty-two million, two hundred twenty thousand, four hundred two".