2001020220022 has 24 divisors (see below), whose sum is σ = 3262627520856. Its totient is φ = 919757572608.

The previous prime is 2001020220007. The next prime is 2001020220029. The reversal of 2001020220022 is 2200220201002.

It is a junction number, because it is equal to n+sod(n) for n = 2001020219984 and 2001020220011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001020220029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40230643 + ... + 40280350.

It is an arithmetic number, because the mean of its divisors is an integer number (135942813369).

Almost surely, 2^{2001020220022} is an apocalyptic number.

2001020220022 is a deficient number, since it is larger than the sum of its proper divisors (1261607300834).

2001020220022 is a wasteful number, since it uses less digits than its factorization.

2001020220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80511072 (or 80511055 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 2001020220022 its reverse (2200220201002), we get a palindrome (4201240421024).

The spelling of 2001020220022 in words is "two trillion, one billion, twenty million, two hundred twenty thousand, twenty-two".