101121020221100 has 72 divisors (see below), whose sum is σ = 239652135323328. Its totient is φ = 36729636148800.

The previous prime is 101121020221079. The next prime is 101121020221181. The reversal of 101121020221100 is 1122020121101.

It is a super-2 number, since 2×101121020221100² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51083174 + ... + 53025773.

Almost surely, 2^{101121020221100} is an apocalyptic number.

101121020221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101121020221100 is an abundant number, since it is smaller than the sum of its proper divisors (138531115102228).

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

101121020221100 is a wasteful number, since it uses less digits than its factorization.

101121020221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104109855 (or 104109848 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101121020221100 its reverse (1122020121101), we get a palindrome (102243040342201).

Subtracting from 101121020221100 its reverse (1122020121101), we obtain a palindrome (99999000099999).

The spelling of 101121020221100 in words is "one hundred one trillion, one hundred twenty-one billion, twenty million, two hundred twenty-one thousand, one hundred".