1012209122101 has 4 divisors (see below), whose sum is σ = 1014967185472. Its totient is φ = 1009451058732.

The previous prime is 1012209122081. The next prime is 1012209122201. The reversal of 1012209122101 is 1012219022101.

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 1012209122101 - 2⁵ = 1012209122069 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 (1012209122201) 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, 1379031135 + ... + 1379031868.

It is an arithmetic number, because the mean of its divisors is an integer number (253741796368).

Almost surely, 2^{1012209122101} is an apocalyptic number.

It is an amenable number.

1012209122101 is a deficient number, since it is larger than the sum of its proper divisors (2758063371).

1012209122101 is an equidigital number, since it uses as much as digits as its factorization.

1012209122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2758063370.

The product of its (nonzero) digits is 144, while the sum is 22.

Multiplying 1012209122101 by its sum of digits (22), we get a palindrome (22268600686222).

The spelling of 1012209122101 in words is "one trillion, twelve billion, two hundred nine million, one hundred twenty-two thousand, one hundred one".