1011122122 has 4 divisors (see below), whose sum is σ = 1516683186. Its totient is φ = 505561060.

The previous prime is 1011122017. The next prime is 1011122129. The reversal of 1011122122 is 2212211101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2212211101 = 563 ⋅3929327.

It can be written as a sum of positive squares in only one way, i.e., 952277881 + 58844241 = 30859^2 + 7671^2 .

It is not an unprimeable number, because it can be changed into a prime (1011122129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252780529 + ... + 252780532.

Almost surely, 2^1011122122 is an apocalyptic number.

1011122122 is a deficient number, since it is larger than the sum of its proper divisors (505561064).

1011122122 is an equidigital number, since it uses as much as digits as its factorization.

1011122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505561063.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1011122122 is about 31798.1465183114. The cubic root of 1011122122 is about 1003.6937136808.

Adding to 1011122122 its reverse (2212211101), we get a palindrome (3223333223).

The spelling of 1011122122 in words is "one billion, eleven million, one hundred twenty-two thousand, one hundred twenty-two".