100120000022001 has 16 divisors (see below), whose sum is σ = 148381750651200. Its totient is φ = 66721545569664.

The previous prime is 100120000021999. The next prime is 100120000022023. The reversal of 100120000022001 is 100220000021001.

It is not a de Polignac number, because 100120000022001 - 2¹ = 100120000021999 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (100120000021001) 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, 697735591 + ... + 697879068.

It is an arithmetic number, because the mean of its divisors is an integer number (9273859415700).

Almost surely, 2^{100120000022001} is an apocalyptic number.

It is an amenable number.

100120000022001 is a deficient number, since it is larger than the sum of its proper divisors (48261750629199).

100120000022001 is a wasteful number, since it uses less digits than its factorization.

100120000022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395617325 (or 1395617319 counting only the distinct ones).

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

Adding to 100120000022001 its reverse (100220000021001), we get a palindrome (200340000043002).

The spelling of 100120000022001 in words is "one hundred trillion, one hundred twenty billion, twenty-two thousand, one".