2001020112022 has 16 divisors (see below), whose sum is σ = 3108555727200. Its totient is φ = 964913192320.

The previous prime is 2001020111957. The next prime is 2001020112023. The reversal of 2001020112022 is 2202110201002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2001020111993 and 2001020112011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001020112023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19529122 + ... + 19631317.

It is an arithmetic number, because the mean of its divisors is an integer number (194284732950).

Almost surely, 2^{2001020112022} is an apocalyptic number.

2001020112022 is a deficient number, since it is larger than the sum of its proper divisors (1107535615178).

2001020112022 is a wasteful number, since it uses less digits than its factorization.

2001020112022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39161351.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2001020112022 its reverse (2202110201002), we get a palindrome (4203130313024).

The spelling of 2001020112022 in words is "two trillion, one billion, twenty million, one hundred twelve thousand, twenty-two".