1021111313122 has 8 divisors (see below), whose sum is σ = 1532100511836. Its totient is φ = 510411142512.

The previous prime is 1021111313099. The next prime is 1021111313161. The reversal of 1021111313122 is 2213131111201.

It can be written as a sum of positive squares in 2 ways, for example, as 788506704441 + 232604608681 = 887979^2 + 482291^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1021111313122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72248193 + ... + 72262324.

Almost surely, 2^{1021111313122} is an apocalyptic number.

1021111313122 is a deficient number, since it is larger than the sum of its proper divisors (510989198714).

1021111313122 is a wasteful number, since it uses less digits than its factorization.

1021111313122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144514052.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 1021111313122 its reverse (2213131111201), we get a palindrome (3234242424323).

The spelling of 1021111313122 in words is "one trillion, twenty-one billion, one hundred eleven million, three hundred thirteen thousand, one hundred twenty-two".