123022220 has 24 divisors (see below), whose sum is σ = 259900704. Its totient is φ = 48912896.

The previous prime is 123022201. The next prime is 123022223. The reversal of 123022220 is 22220321.

It is a super-2 number, since 2×123022220² = 30268933227456800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123022195 and 123022204.

It is not an unprimeable number, because it can be changed into a prime (123022223) 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, 15077 + ... + 21756.

It is an arithmetic number, because the mean of its divisors is an integer number (10829196).

Almost surely, 2^123022220 is an apocalyptic number.

123022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123022220 is an abundant number, since it is smaller than the sum of its proper divisors (136878484).

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

123022220 is a wasteful number, since it uses less digits than its factorization.

123022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37009 (or 37007 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 123022220 is about 11091.5382161358. The cubic root of 123022220 is about 497.3489284826.

Adding to 123022220 its reverse (22220321), we get a palindrome (145242541).

The spelling of 123022220 in words is "one hundred twenty-three million, twenty-two thousand, two hundred twenty".