2001212022022 has 16 divisors (see below), whose sum is σ = 3082994349120. Its totient is φ = 973548047808.

The previous prime is 2001212022001. The next prime is 2001212022023. The reversal of 2001212022022 is 2202202121002.

It is a junction number, because it is equal to n+sod(n) for n = 2001212021987 and 2001212022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001212022023) 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, 6097458 + ... + 6417274.

It is an arithmetic number, because the mean of its divisors is an integer number (192687146820).

Almost surely, 2^{2001212022022} is an apocalyptic number.

2001212022022 is a deficient number, since it is larger than the sum of its proper divisors (1081782327098).

2001212022022 is a wasteful number, since it uses less digits than its factorization.

2001212022022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404415.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2001212022022 its reverse (2202202121002), we get a palindrome (4203414143024).

The spelling of 2001212022022 in words is "two trillion, one billion, two hundred twelve million, twenty-two thousand, twenty-two".