122205545 has 48 divisors (see below), whose sum is σ = 187996032. Its totient is φ = 74081280.

The previous prime is 122205541. The next prime is 122205563. The reversal of 122205545 is 545502221.

It is not a de Polignac number, because 122205545 - 2² = 122205541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122205541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1081409 + ... + 1081521.

It is an arithmetic number, because the mean of its divisors is an integer number (3916584).

Almost surely, 2^122205545 is an apocalyptic number.

It is an amenable number.

122205545 is a deficient number, since it is larger than the sum of its proper divisors (65790487).

122205545 is a wasteful number, since it uses less digits than its factorization.

122205545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 122205545 is about 11054.6616863656. The cubic root of 122205545 is about 496.2459446781.

Adding to 122205545 its reverse (545502221), we get a palindrome (667707766).

The spelling of 122205545 in words is "one hundred twenty-two million, two hundred five thousand, five hundred forty-five".