61111122 has 16 divisors (see below), whose sum is σ = 122541120. Its totient is φ = 20317232.

The previous prime is 61111121. The next prime is 61111129. The reversal of 61111122 is 22111116.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (61111121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10758 + ... + 15425.

It is an arithmetic number, because the mean of its divisors is an integer number (7658820).

Almost surely, 2^61111122 is an apocalyptic number.

61111122 is an abundant number, since it is smaller than the sum of its proper divisors (61429998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61111122 is a wasteful number, since it uses less digits than its factorization.

61111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26577.

The product of its digits is 24, while the sum is 15.

The square root of 61111122 is about 7817.3602961614. The cubic root of 61111122 is about 393.8886068838. Note that the first 3 decimals are identical.

Adding to 61111122 its reverse (22111116), we get a palindrome (83222238).

The spelling of 61111122 in words is "sixty-one million, one hundred eleven thousand, one hundred twenty-two".