1001220000122 has 16 divisors (see below), whose sum is σ = 1509850814472. Its totient is φ = 497937733440.

The previous prime is 1001220000089. The next prime is 1001220000127. The reversal of 1001220000122 is 2210000221001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 988694137561 + 12525862561 = 994331^2 + 111919^2 .

It is not an unprimeable number, because it can be changed into a prime (1001220000127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1172948 + ... + 1838000.

Almost surely, 2^{1001220000122} is an apocalyptic number.

1001220000122 is a deficient number, since it is larger than the sum of its proper divisors (508630814350).

1001220000122 is a wasteful number, since it uses less digits than its factorization.

1001220000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669073.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1001220000122 its reverse (2210000221001), we get a palindrome (3211220221123).

The spelling of 1001220000122 in words is "one trillion, one billion, two hundred twenty million, one hundred twenty-two", and thus it is an aban number.