1111001220122 has 16 divisors (see below), whose sum is σ = 1690233630120. Its totient is φ = 547634577408.

The previous prime is 1111001220107. The next prime is 1111001220137. The reversal of 1111001220122 is 2210221001111.

It is an interprime number because it is at equal distance from previous prime (1111001220107) and next prime (1111001220137).

It can be written as a sum of positive squares in 4 ways, for example, as 1074603830161 + 36397389961 = 1036631^2 + 190781^2 .

It is a super-2 number, since 2×1111001220122² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1111001220097 and 1111001220106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11091797 + ... + 11191512.

Almost surely, 2^{1111001220122} is an apocalyptic number.

1111001220122 is a deficient number, since it is larger than the sum of its proper divisors (579232409998).

1111001220122 is a wasteful number, since it uses less digits than its factorization.

1111001220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22283665.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1111001220122 its reverse (2210221001111), we get a palindrome (3321222221233).

The spelling of 1111001220122 in words is "one trillion, one hundred eleven billion, one million, two hundred twenty thousand, one hundred twenty-two".