100220021201 has 8 divisors (see below), whose sum is σ = 102670072008. Its totient is φ = 97770240000.

The previous prime is 100220021191. The next prime is 100220021207. The reversal of 100220021201 is 102120022001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 27622107601 + 72597913600 = 166199^2 + 269440^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-100220021201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100220021207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829061 + ... + 942221.

It is an arithmetic number, because the mean of its divisors is an integer number (12833759001).

Almost surely, 2^100220021201 is an apocalyptic number.

It is an amenable number.

100220021201 is a deficient number, since it is larger than the sum of its proper divisors (2450050807).

100220021201 is a wasteful number, since it uses less digits than its factorization.

100220021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134803.

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

Adding to 100220021201 its reverse (102120022001), we get a palindrome (202340043202).

The spelling of 100220021201 in words is "one hundred billion, two hundred twenty million, twenty-one thousand, two hundred one".