100201011001021 has 4 divisors (see below), whose sum is σ = 114515441144032. Its totient is φ = 85886580858012.

The previous prime is 100201011001001. The next prime is 100201011001037. The reversal of 100201011001021 is 120100110102001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100201011001021 - 2⁵ = 100201011000989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100201011000989 and 100201011001007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100201011001001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7157215071495 + ... + 7157215071508.

It is an arithmetic number, because the mean of its divisors is an integer number (28628860286008).

Almost surely, 2^{100201011001021} is an apocalyptic number.

It is an amenable number.

100201011001021 is a deficient number, since it is larger than the sum of its proper divisors (14314430143011).

100201011001021 is an equidigital number, since it uses as much as digits as its factorization.

100201011001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14314430143010.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 100201011001021 its reverse (120100110102001), we get a palindrome (220301121103022).

The spelling of 100201011001021 in words is "one hundred trillion, two hundred one billion, eleven million, one thousand, twenty-one".