1011111100122 has 16 divisors (see below), whose sum is σ = 2022261026112. Its totient is φ = 337030562400.

The previous prime is 1011111100121. The next prime is 1011111100171. The reversal of 1011111100122 is 2210011111101.

It is a super-2 number, since 2×1011111100122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1011111100098 and 1011111100107.

It is not an unprimeable number, because it can be changed into a prime (1011111100121) 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, 1273563 + ... + 1908974.

It is an arithmetic number, because the mean of its divisors is an integer number (126391314132).

Almost surely, 2^{1011111100122} is an apocalyptic number.

1011111100122 is an abundant number, since it is smaller than the sum of its proper divisors (1011149925990).

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

1011111100122 is a wasteful number, since it uses less digits than its factorization.

1011111100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3235493.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1011111100122 its reverse (2210011111101), we get a palindrome (3221122211223).

The spelling of 1011111100122 in words is "one trillion, eleven billion, one hundred eleven million, one hundred thousand, one hundred twenty-two".