100121002210000 has 50 divisors (see below), whose sum is σ = 242402958474842. Its totient is φ = 40048400880000.

The previous prime is 100121002209971. The next prime is 100121002210037. The reversal of 100121002210000 is 12200121001.

It can be written as a sum of positive squares in 5 ways, for example, as 62851344717456 + 37269657492544 = 7927884^2 + 6104888^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5006040111 + ... + 5006060110.

Almost surely, 2^{100121002210000} is an apocalyptic number.

100121002210000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100121002210000 is an abundant number, since it is smaller than the sum of its proper divisors (142281956264842).

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

100121002210000 is an equidigital number, since it uses as much as digits as its factorization.

100121002210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10012100249 (or 10012100228 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100121002210000 its reverse (12200121001), we get a palindrome (100133202331001).

The spelling of 100121002210000 in words is "one hundred trillion, one hundred twenty-one billion, two million, two hundred ten thousand".