1020111122 has 4 divisors (see below), whose sum is σ = 1530166686. Its totient is φ = 510055560.

The previous prime is 1020111107. The next prime is 1020111149. The reversal of 1020111122 is 2211110201.

1020111122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 953018641 + 67092481 = 30871^2 + 8191^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255027779 + ... + 255027782.

Almost surely, 2^1020111122 is an apocalyptic number.

1020111122 is a deficient number, since it is larger than the sum of its proper divisors (510055564).

1020111122 is an equidigital number, since it uses as much as digits as its factorization.

1020111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510055563.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1020111122 is about 31939.1784803554. The cubic root of 1020111122 is about 1006.6592631114.

Adding to 1020111122 its reverse (2211110201), we get a palindrome (3231221323).

The spelling of 1020111122 in words is "one billion, twenty million, one hundred eleven thousand, one hundred twenty-two".