1012020221101 has 4 divisors (see below), whose sum is σ = 1026274027104. Its totient is φ = 997766415100.

The previous prime is 1012020221083. The next prime is 1012020221111. The reversal of 1012020221101 is 1011220202101.

1012020221101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 1012020221101 - 2¹¹ = 1012020219053 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 (1012020221111) 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, 7126902895 + ... + 7126903036.

It is an arithmetic number, because the mean of its divisors is an integer number (256568506776).

Almost surely, 2^{1012020221101} is an apocalyptic number.

It is an amenable number.

1012020221101 is a deficient number, since it is larger than the sum of its proper divisors (14253806003).

1012020221101 is an equidigital number, since it uses as much as digits as its factorization.

1012020221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14253806002.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1012020221101 its reverse (1011220202101), we get a palindrome (2023240423202).

The spelling of 1012020221101 in words is "one trillion, twelve billion, twenty million, two hundred twenty-one thousand, one hundred one".