122503440220 has 24 divisors (see below), whose sum is σ = 294008256864. Its totient is φ = 42001179456.

The previous prime is 122503440203. The next prime is 122503440221. The reversal of 122503440220 is 22044305221.

It is a super-2 number, since 2×122503440220² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122503440221) 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, 437512147 + ... + 437512426.

It is an arithmetic number, because the mean of its divisors is an integer number (12250344036).

Almost surely, 2^122503440220 is an apocalyptic number.

122503440220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122503440220 is an abundant number, since it is smaller than the sum of its proper divisors (171504816644).

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

122503440220 is a wasteful number, since it uses less digits than its factorization.

122503440220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875024589 (or 875024587 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 122503440220 its reverse (22044305221), we get a palindrome (144547745441).

The spelling of 122503440220 in words is "one hundred twenty-two billion, five hundred three million, four hundred forty thousand, two hundred twenty".