122320012312220 has 48 divisors (see below), whose sum is σ = 260491719192768. Its totient is φ = 48238548933120.

The previous prime is 122320012312177. The next prime is 122320012312237. The reversal of 122320012312220 is 22213210023221.

It is a happy number.

It is a super-2 number, since 2×122320012312220² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395481554 + ... + 395790726.

It is an arithmetic number, because the mean of its divisors is an integer number (5426910816516).

Almost surely, 2^{122320012312220} is an apocalyptic number.

122320012312220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122320012312220 is an abundant number, since it is smaller than the sum of its proper divisors (138171706880548).

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

122320012312220 is a wasteful number, since it uses less digits than its factorization.

122320012312220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587870 (or 587868 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 122320012312220 its reverse (22213210023221), we get a palindrome (144533222335441).

The spelling of 122320012312220 in words is "one hundred twenty-two trillion, three hundred twenty billion, twelve million, three hundred twelve thousand, two hundred twenty".