61122061012 has 24 divisors (see below), whose sum is σ = 107592710400. Its totient is φ = 30381387456.

The previous prime is 61122060991. The next prime is 61122061043. The reversal of 61122061012 is 21016022116.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2905789 + ... + 2926747.

It is an arithmetic number, because the mean of its divisors is an integer number (4483029600).

Almost surely, 2^61122061012 is an apocalyptic number.

It is an amenable number.

61122061012 is a deficient number, since it is larger than the sum of its proper divisors (46470649388).

61122061012 is a wasteful number, since it uses less digits than its factorization.

61122061012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25215 (or 25213 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 61122061012 its reverse (21016022116), we get a palindrome (82138083128).

The spelling of 61122061012 in words is "sixty-one billion, one hundred twenty-two million, sixty-one thousand, twelve".