122723022220 has 24 divisors (see below), whose sum is σ = 257784105600. Its totient is φ = 49076683392.

The previous prime is 122723022217. The next prime is 122723022223. The reversal of 122723022220 is 22220327221.

It is an interprime number because it is at equal distance from previous prime (122723022217) and next prime (122723022223).

It is a super-2 number, since 2×122723022220² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122723022223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702300 + ... + 859459.

It is an arithmetic number, because the mean of its divisors is an integer number (10741004400).

Almost surely, 2^122723022220 is an apocalyptic number.

122723022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122723022220 is an abundant number, since it is smaller than the sum of its proper divisors (135061083380).

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

122723022220 is a wasteful number, since it uses less digits than its factorization.

122723022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565697 (or 1565695 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

Adding to 122723022220 its reverse (22220327221), we get a palindrome (144943349441).

The spelling of 122723022220 in words is "one hundred twenty-two billion, seven hundred twenty-three million, twenty-two thousand, two hundred twenty".