1012122012101 has 4 divisors (see below), whose sum is σ = 1017713846604. Its totient is φ = 1006530177600.

The previous prime is 1012122012067. The next prime is 1012122012103. The reversal of 1012122012101 is 1012102212101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 403720452100 + 608401560001 = 635390^2 + 780001^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012122012101 - 2²² = 1012117817797 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 (1012122012103) 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, 2795916980 + ... + 2795917341.

It is an arithmetic number, because the mean of its divisors is an integer number (254428461651).

Almost surely, 2^{1012122012101} is an apocalyptic number.

It is an amenable number.

1012122012101 is a deficient number, since it is larger than the sum of its proper divisors (5591834503).

1012122012101 is an equidigital number, since it uses as much as digits as its factorization.

1012122012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5591834502.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1012122012101 its reverse (1012102212101), we get a palindrome (2024224224202).

The spelling of 1012122012101 in words is "one trillion, twelve billion, one hundred twenty-two million, twelve thousand, one hundred one".