122261604740 has 48 divisors (see below), whose sum is σ = 282707941824. Its totient is φ = 44043254400.

The previous prime is 122261604737. The next prime is 122261604749. The reversal of 122261604740 is 47406162221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 122261604740.

It is not an unprimeable number, because it can be changed into a prime (122261604749) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2573351 + ... + 2620430.

It is an arithmetic number, because the mean of its divisors is an integer number (5889748788).

Almost surely, 2^122261604740 is an apocalyptic number.

122261604740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122261604740 is an abundant number, since it is smaller than the sum of its proper divisors (160446337084).

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

122261604740 is a wasteful number, since it uses less digits than its factorization.

122261604740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5193908 (or 5193906 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

Adding to 122261604740 its reverse (47406162221), we get a palindrome (169667766961).

The spelling of 122261604740 in words is "one hundred twenty-two billion, two hundred sixty-one million, six hundred four thousand, seven hundred forty".