2001222120022 has 32 divisors (see below), whose sum is σ = 3083338742400. Its totient is φ = 973820134848.

The previous prime is 2001222119989. The next prime is 2001222120049. The reversal of 2001222120022 is 2200212221002.

It is a junction number, because it is equal to n+sod(n) for n = 2001222119978 and 2001222120005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14948193 + ... + 15081475.

It is an arithmetic number, because the mean of its divisors is an integer number (96354335700).

Almost surely, 2^{2001222120022} is an apocalyptic number.

2001222120022 is a deficient number, since it is larger than the sum of its proper divisors (1082116622378).

2001222120022 is a wasteful number, since it uses less digits than its factorization.

2001222120022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134700.

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

Adding to 2001222120022 its reverse (2200212221002), we get a palindrome (4201434341024).

The spelling of 2001222120022 in words is "two trillion, one billion, two hundred twenty-two million, one hundred twenty thousand, twenty-two".