1012001021101 has 4 divisors (see below), whose sum is σ = 1156572595552. Its totient is φ = 867429446652.

The previous prime is 1012001021089. The next prime is 1012001021107. The reversal of 1012001021101 is 1011201002101.

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 1012001021101 - 2⁵ = 1012001021069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012001021107) 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, 72285787215 + ... + 72285787228.

It is an arithmetic number, because the mean of its divisors is an integer number (289143148888).

Almost surely, 2^{1012001021101} is an apocalyptic number.

It is an amenable number.

1012001021101 is a deficient number, since it is larger than the sum of its proper divisors (144571574451).

1012001021101 is an equidigital number, since it uses as much as digits as its factorization.

1012001021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144571574450.

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

Adding to 1012001021101 its reverse (1011201002101), we get a palindrome (2023202023202).

The spelling of 1012001021101 in words is "one trillion, twelve billion, one million, twenty-one thousand, one hundred one".