61122222113 has 16 divisors (see below), whose sum is σ = 62933643456. Its totient is φ = 59319449280.

The previous prime is 61122222071. The next prime is 61122222131. The reversal of 61122222113 is 31122222116.

It is a cyclic number.

It is not a de Polignac number, because 61122222113 - 2¹⁰ = 61122221089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61122224113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50388695 + ... + 50389907.

It is an arithmetic number, because the mean of its divisors is an integer number (3933352716).

Almost surely, 2^61122222113 is an apocalyptic number.

It is an amenable number.

61122222113 is a deficient number, since it is larger than the sum of its proper divisors (1811421343).

61122222113 is a wasteful number, since it uses less digits than its factorization.

61122222113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3584.

The product of its digits is 576, while the sum is 23.

Adding to 61122222113 its reverse (31122222116), we get a palindrome (92244444229).

The spelling of 61122222113 in words is "sixty-one billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred thirteen".