1001221110022 has 24 divisors (see below), whose sum is σ = 1803384440640. Its totient is φ = 415252993680.

The previous prime is 1001221109989. The next prime is 1001221110049. The reversal of 1001221110022 is 2200111221001.

It is a super-2 number, since 2×1001221110022² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1001221109984 and 1001221110011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164779897 + ... + 164785972.

It is an arithmetic number, because the mean of its divisors is an integer number (75141018360).

Almost surely, 2^{1001221110022} is an apocalyptic number.

1001221110022 is a deficient number, since it is larger than the sum of its proper divisors (802163330618).

1001221110022 is a wasteful number, since it uses less digits than its factorization.

1001221110022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329565916 (or 329565909 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1001221110022 its reverse (2200111221001), we get a palindrome (3201332331023).

The spelling of 1001221110022 in words is "one trillion, one billion, two hundred twenty-one million, one hundred ten thousand, twenty-two".