123021022220 has 48 divisors (see below), whose sum is σ = 263443289088. Its totient is φ = 48244109760.

The previous prime is 123021022219. The next prime is 123021022249. The reversal of 123021022220 is 22220120321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65189 + ... + 500291.

It is an arithmetic number, because the mean of its divisors is an integer number (5488401856).

Almost surely, 2^123021022220 is an apocalyptic number.

123021022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123021022220 is an abundant number, since it is smaller than the sum of its proper divisors (140422266868).

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

123021022220 is a wasteful number, since it uses less digits than its factorization.

123021022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435390 (or 435388 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 123021022220 its reverse (22220120321), we get a palindrome (145241142541).

The spelling of 123021022220 in words is "one hundred twenty-three billion, twenty-one million, twenty-two thousand, two hundred twenty".