1000000000122 has 16 divisors (see below), whose sum is σ = 2000011048320. Its totient is φ = 333331492032.

The previous prime is 1000000000121. The next prime is 1000000000163. The reversal of 1000000000122 is 2210000000001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a self number, because there is not a number n which added to its sum of digits gives 1000000000122.

It is not an unprimeable number, because it can be changed into a prime (1000000000121) 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, 1149279 + ... + 1822317.

It is an arithmetic number, because the mean of its divisors is an integer number (125000690520).

Almost surely, 2^{1000000000122} is an apocalyptic number.

1000000000122 is an abundant number, since it is smaller than the sum of its proper divisors (1000011048198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000000000122 is a wasteful number, since it uses less digits than its factorization.

1000000000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920677.

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 1000000000122 its reverse (2210000000001), we get a palindrome (3210000000123).

It can be divided in two parts, 10000000001 and 22, that multiplied together give a palindrome (220000000022).

The spelling of 1000000000122 in words is "one trillion, one hundred twenty-two", and thus it is an aban number.