100121121121002 has 16 divisors (see below), whose sum is σ = 200242346473920. Its totient is φ = 33373689668352.

The previous prime is 100121121120991. The next prime is 100121121121123. The reversal of 100121121121002 is 200121121121001.

It is a happy number.

It is a super-2 number, since 2×100121121121002² (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 7 ways as a sum of consecutive naturals, for example, 14300883 + ... + 20118585.

It is an arithmetic number, because the mean of its divisors is an integer number (12515146654620).

Almost surely, 2^{100121121121002} is an apocalyptic number.

100121121121002 is an abundant number, since it is smaller than the sum of its proper divisors (100121225352918).

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

100121121121002 is a wasteful number, since it uses less digits than its factorization.

100121121121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8685997.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 100121121121002 its reverse (200121121121001), we get a palindrome (300242242242003).

Subtracting 100121121121002 from its reverse (200121121121001), we obtain a palindrome (99999999999999).

The spelling of 100121121121002 in words is "one hundred trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred twenty-one thousand, two".