1001221202022 has 16 divisors (see below), whose sum is σ = 2107834109760. Its totient is φ = 316175116392.

The previous prime is 1001221202011. The next prime is 1001221202027. The reversal of 1001221202022 is 2202021221001.

1001221202022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1001221201992 and 1001221202010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001221202027) 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, 4391320948 + ... + 4391321175.

It is an arithmetic number, because the mean of its divisors is an integer number (131739631860).

Almost surely, 2^{1001221202022} is an apocalyptic number.

1001221202022 is an abundant number, since it is smaller than the sum of its proper divisors (1106612907738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001221202022 is a wasteful number, since it uses less digits than its factorization.

1001221202022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8782642147.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1001221202022 its reverse (2202021221001), we get a palindrome (3203242423023).

The spelling of 1001221202022 in words is "one trillion, one billion, two hundred twenty-one million, two hundred two thousand, twenty-two".