1000012211122 has 8 divisors (see below), whose sum is σ = 1578966649200. Its totient is φ = 473689994724.

The previous prime is 1000012211117. The next prime is 1000012211123. The reversal of 1000012211122 is 2211122100001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1000012211122² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1000012211123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13158055372 + ... + 13158055447.

It is an arithmetic number, because the mean of its divisors is an integer number (197370831150).

Almost surely, 2^{1000012211122} is an apocalyptic number.

1000012211122 is a deficient number, since it is larger than the sum of its proper divisors (578954438078).

1000012211122 is a wasteful number, since it uses less digits than its factorization.

1000012211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26316110840.

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

Adding to 1000012211122 its reverse (2211122100001), we get a palindrome (3211134311123).

It can be divided in two parts, 100001 and 2211122, that multiplied together give a palindrome (221114411122).

The spelling of 1000012211122 in words is "one trillion, twelve million, two hundred eleven thousand, one hundred twenty-two".