100121233021001 has 16 divisors (see below), whose sum is σ = 109952594380800. Its totient is φ = 90744826007808.

The previous prime is 100121233020989. The next prime is 100121233021057. The reversal of 100121233021001 is 100120332121001.

It is a cyclic number.

It is not a de Polignac number, because 100121233021001 - 2⁶ = 100121233020937 is a prime.

It is a super-2 number, since 2×100121233021001² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100121233021081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264936071 + ... + 265313708.

It is an arithmetic number, because the mean of its divisors is an integer number (6872037148800).

Almost surely, 2^{100121233021001} is an apocalyptic number.

It is an amenable number.

100121233021001 is a deficient number, since it is larger than the sum of its proper divisors (9831361359799).

100121233021001 is a wasteful number, since it uses less digits than its factorization.

100121233021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530250208.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 100121233021001 its reverse (100120332121001), we get a palindrome (200241565142002).

The spelling of 100121233021001 in words is "one hundred trillion, one hundred twenty-one billion, two hundred thirty-three million, twenty-one thousand, one".