1000111221122 has 32 divisors (see below), whose sum is σ = 1649649706992. Its totient is φ = 451943414784.

The previous prime is 1000111221089. The next prime is 1000111221139. The reversal of 1000111221122 is 2211221110001.

It can be written as a sum of positive squares in 8 ways, for example, as 750252201241 + 249859019881 = 866171^2 + 499859^2 .

It is a super-3 number, since 3×1000111221122³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1000111221097 and 1000111221106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1663073 + ... + 2183124.

Almost surely, 2^{1000111221122} is an apocalyptic number.

1000111221122 is a deficient number, since it is larger than the sum of its proper divisors (649538485870).

1000111221122 is a wasteful number, since it uses less digits than its factorization.

1000111221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846422.

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

Adding to 1000111221122 its reverse (2211221110001), we get a palindrome (3211332331123).

The spelling of 1000111221122 in words is "one trillion, one hundred eleven million, two hundred twenty-one thousand, one hundred twenty-two".