100121000002002 has 48 divisors (see below), whose sum is σ = 247980632095872. Its totient is φ = 28598850144000.

The previous prime is 100121000001989. The next prime is 100121000002021. The reversal of 100121000002002 is 200200000121001.

It is a Harshad number since it is a multiple of its sum of digits (9).

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, 98797438 + ... + 99805689.

It is an arithmetic number, because the mean of its divisors is an integer number (5166263168664).

Almost surely, 2^{100121000002002} is an apocalyptic number.

100121000002002 is an abundant number, since it is smaller than the sum of its proper divisors (147859632093870).

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

100121000002002 is a wasteful number, since it uses less digits than its factorization.

100121000002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198607143 (or 198607140 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 100121000002002 its reverse (200200000121001), we get a palindrome (300321000123003).

The spelling of 100121000002002 in words is "one hundred trillion, one hundred twenty-one billion, two thousand, two".