100120021202 has 8 divisors (see below), whose sum is σ = 150443970300. Its totient is φ = 49972031104.

The previous prime is 100120021171. The next prime is 100120021213. The reversal of 100120021202 is 202120021001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 92384994601 + 7735026601 = 303949^2 + 87949^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43988327 + ... + 43990602.

Almost surely, 2^100120021202 is an apocalyptic number.

100120021202 is a deficient number, since it is larger than the sum of its proper divisors (50323949098).

100120021202 is an equidigital number, since it uses as much as digits as its factorization.

100120021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87979500.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100120021202 its reverse (202120021001), we get a palindrome (302240042203).

The spelling of 100120021202 in words is "one hundred billion, one hundred twenty million, twenty-one thousand, two hundred two".