61161225222 has 16 divisors (see below), whose sum is σ = 123444676080. Its totient is φ = 20200037472.

The previous prime is 61161225221. The next prime is 61161225233. The reversal of 61161225222 is 22252216116.

It is a self number, because there is not a number n which added to its sum of digits gives 61161225222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61161225221) 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, 46758693 + ... + 46760000.

It is an arithmetic number, because the mean of its divisors is an integer number (7715292255).

Almost surely, 2^61161225222 is an apocalyptic number.

61161225222 is an abundant number, since it is smaller than the sum of its proper divisors (62283450858).

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

61161225222 is a wasteful number, since it uses less digits than its factorization.

61161225222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93518807.

The product of its digits is 5760, while the sum is 30.

The spelling of 61161225222 in words is "sixty-one billion, one hundred sixty-one million, two hundred twenty-five thousand, two hundred twenty-two".