100220101001001 has 12 divisors (see below), whose sum is σ = 144762455331312. Its totient is φ = 66813360412536.

The previous prime is 100220101000973. The next prime is 100220101001017. The reversal of 100220101001001 is 100100101022001.

It is a happy number.

It is not a de Polignac number, because 100220101001001 - 2⁵ = 100220101000969 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 (100220101001051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25256650 + ... + 28954076.

It is an arithmetic number, because the mean of its divisors is an integer number (12063537944276).

Almost surely, 2^{100220101001001} is an apocalyptic number.

It is an amenable number.

100220101001001 is a deficient number, since it is larger than the sum of its proper divisors (44542354330311).

100220101001001 is a wasteful number, since it uses less digits than its factorization.

100220101001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6709140 (or 6709137 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 100220101001001 its reverse (100100101022001), we get a palindrome (200320202023002).

The spelling of 100220101001001 in words is "one hundred trillion, two hundred twenty billion, one hundred one million, one thousand, one".