2001002022122 has 32 divisors (see below), whose sum is σ = 3046117536000. Its totient is φ = 985725232128.

The previous prime is 2001002022079. The next prime is 2001002022163. The reversal of 2001002022122 is 2212202001002.

It is a junction number, because it is equal to n+sod(n) for n = 2001002022097 and 2001002022106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215550893 + ... + 215560175.

It is an arithmetic number, because the mean of its divisors is an integer number (95191173000).

Almost surely, 2^{2001002022122} is an apocalyptic number.

2001002022122 is a deficient number, since it is larger than the sum of its proper divisors (1045115513878).

2001002022122 is a wasteful number, since it uses less digits than its factorization.

2001002022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14270.

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

Adding to 2001002022122 its reverse (2212202001002), we get a palindrome (4213204023124).

It can be divided in two parts, 200100 and 2022122, that added together give a palindrome (2222222).

The spelling of 2001002022122 in words is "two trillion, one billion, two million, twenty-two thousand, one hundred twenty-two".