1001102012122 has 4 divisors (see below), whose sum is σ = 1501653018186. Its totient is φ = 500551006060.

The previous prime is 1001102012107. The next prime is 1001102012123. The reversal of 1001102012122 is 2212102011001.

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

It can be written as a sum of positive squares in only one way, i.e., 995347424241 + 5754587881 = 997671^2 + 75859^2 .

It is not an unprimeable number, because it can be changed into a prime (1001102012123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250275503029 + ... + 250275503032.

Almost surely, 2^{1001102012122} is an apocalyptic number.

1001102012122 is a deficient number, since it is larger than the sum of its proper divisors (500551006064).

1001102012122 is an equidigital number, since it uses as much as digits as its factorization.

1001102012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500551006063.

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

Adding to 1001102012122 its reverse (2212102011001), we get a palindrome (3213204023123).

The spelling of 1001102012122 in words is "one trillion, one billion, one hundred two million, twelve thousand, one hundred twenty-two".