611221220039 has 12 divisors (see below), whose sum is σ = 614863908384. Its totient is φ = 607599667584.

The previous prime is 611221220017. The next prime is 611221220047. The reversal of 611221220039 is 930022122116.

It is a de Polignac number, because none of the positive numbers 2^k-611221220039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 611221219993 and 611221220020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611221220339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50329202 + ... + 50341344.

It is an arithmetic number, because the mean of its divisors is an integer number (51238659032).

Almost surely, 2^611221220039 is an apocalyptic number.

611221220039 is a deficient number, since it is larger than the sum of its proper divisors (3642688345).

611221220039 is a wasteful number, since it uses less digits than its factorization.

611221220039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13834 (or 13637 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 611221220039 in words is "six hundred eleven billion, two hundred twenty-one million, two hundred twenty thousand, thirty-nine".