100001021098 has 32 divisors (see below), whose sum is σ = 164165994432. Its totient is φ = 45308601600.

The previous prime is 100001021093. The next prime is 100001021101. The reversal of 100001021098 is 890120100001.

It is a super-2 number, since 2×100001021098² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (100001021093) 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, 9009240 + ... + 9020332.

It is an arithmetic number, because the mean of its divisors is an integer number (5130187326).

Almost surely, 2^100001021098 is an apocalyptic number.

100001021098 is a deficient number, since it is larger than the sum of its proper divisors (64164973334).

100001021098 is a wasteful number, since it uses less digits than its factorization.

100001021098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12390.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 100001021098 its reverse (890120100001), we get a palindrome (990121121099).

The spelling of 100001021098 in words is "one hundred billion, one million, twenty-one thousand, ninety-eight".