100011002101021 has 4 divisors (see below), whose sum is σ = 109102911382944. Its totient is φ = 90919092819100.

The previous prime is 100011002101019. The next prime is 100011002101033. The reversal of 100011002101021 is 120101200110001.

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 100011002101021 - 2¹ = 100011002101019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100011002100989 and 100011002101007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100011002104021) 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, 4545954640945 + ... + 4545954640966.

It is an arithmetic number, because the mean of its divisors is an integer number (27275727845736).

Almost surely, 2^{100011002101021} is an apocalyptic number.

100011002101021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100011002101021 is a deficient number, since it is larger than the sum of its proper divisors (9091909281923).

100011002101021 is an equidigital number, since it uses as much as digits as its factorization.

100011002101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9091909281922.

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

Adding to 100011002101021 its reverse (120101200110001), we get a palindrome (220112202211022).

The spelling of 100011002101021 in words is "one hundred trillion, eleven billion, two million, one hundred one thousand, twenty-one".