2001001222022 has 48 divisors (see below), whose sum is σ = 3358340546400. Its totient is φ = 893369136000.

The previous prime is 2001001222009. The next prime is 2001001222049. The reversal of 2001001222022 is 2202221001002.

It is a junction number, because it is equal to n+sod(n) for n = 2001001221988 and 2001001222006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2944604 + ... + 3559872.

It is an arithmetic number, because the mean of its divisors is an integer number (69965428050).

Almost surely, 2^{2001001222022} is an apocalyptic number.

2001001222022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2001001222022 is a deficient number, since it is larger than the sum of its proper divisors (1357339324378).

2001001222022 is a wasteful number, since it uses less digits than its factorization.

2001001222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615533 (or 615522 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2001001222022 its reverse (2202221001002), we get a palindrome (4203222223024).

The spelling of 2001001222022 in words is "two trillion, one billion, one million, two hundred twenty-two thousand, twenty-two".