400220020022 has 16 divisors (see below), whose sum is σ = 603959811840. Its totient is φ = 198900221928.

The previous prime is 400220020019. The next prime is 400220020087. The reversal of 400220020022 is 220020022004.

It is a junction number, because it is equal to n+sod(n) for n = 400220019979 and 400220020006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10709093 + ... + 10746399.

It is an arithmetic number, because the mean of its divisors is an integer number (37747488240).

Almost surely, 2^400220020022 is an apocalyptic number.

400220020022 is a deficient number, since it is larger than the sum of its proper divisors (203739791818).

400220020022 is a wasteful number, since it uses less digits than its factorization.

400220020022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69595.

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 400220020022 its reverse (220020022004), we get a palindrome (620240042026).

The spelling of 400220020022 in words is "four hundred billion, two hundred twenty million, twenty thousand, twenty-two".