10001122121022 has 16 divisors (see below), whose sum is σ = 20046792675600. Its totient is φ = 3326282634752.

The previous prime is 10001122121021. The next prime is 10001122121113. The reversal of 10001122121022 is 22012122110001.

It is a junction number, because it is equal to n+sod(n) for n = 10001122120992 and 10001122121010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001122121021) 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, 1856181813 + ... + 1856187200.

It is an arithmetic number, because the mean of its divisors is an integer number (1252924542225).

Almost surely, 2^{10001122121022} is an apocalyptic number.

10001122121022 is an abundant number, since it is smaller than the sum of its proper divisors (10045670554578).

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

10001122121022 is a wasteful number, since it uses less digits than its factorization.

10001122121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3712369467.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10001122121022 its reverse (22012122110001), we get a palindrome (32013244231023).

The spelling of 10001122121022 in words is "ten trillion, one billion, one hundred twenty-two million, one hundred twenty-one thousand, twenty-two".