1000000122201 has 60 divisors (see below), whose sum is σ = 1577147111892. Its totient is φ = 631355026176.

The previous prime is 1000000122109. The next prime is 1000000122211. The reversal of 1000000122201 is 1022210000001.

It can be written as a sum of positive squares in 2 ways, for example, as 668110064400 + 331890057801 = 817380^2 + 576099^2 .

It is not a de Polignac number, because 1000000122201 - 2¹⁵ = 1000000089433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1000000122211) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 130323301 + ... + 130330973.

Almost surely, 2^{1000000122201} is an apocalyptic number.

It is an amenable number.

1000000122201 is a deficient number, since it is larger than the sum of its proper divisors (577146989691).

1000000122201 is an equidigital number, since it uses as much as digits as its factorization.

1000000122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12180 (or 12152 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1000000122201 its reverse (1022210000001), we get a palindrome (2022210122202).

The spelling of 1000000122201 in words is "one trillion, one hundred twenty-two thousand, two hundred one".