100121220011000 has 64 divisors (see below), whose sum is σ = 234287893082880. Its totient is φ = 40047763516800.

The previous prime is 100121220010967. The next prime is 100121220011017. The reversal of 100121220011000 is 110022121001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56199929 + ... + 57954071.

It is an arithmetic number, because the mean of its divisors is an integer number (3660748329420).

Almost surely, 2^{100121220011000} is an apocalyptic number.

100121220011000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100121220011000 is an abundant number, since it is smaller than the sum of its proper divisors (134166673071880).

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

100121220011000 is a wasteful number, since it uses less digits than its factorization.

100121220011000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811241 (or 1811227 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100121220011000 its reverse (110022121001), we get a palindrome (100231242132001).

The spelling of 100121220011000 in words is "one hundred trillion, one hundred twenty-one billion, two hundred twenty million, eleven thousand".