1223122313100 has 72 divisors (see below), whose sum is σ = 3539334593088. Its totient is φ = 326125947200.

The previous prime is 1223122313071. The next prime is 1223122313183. The reversal of 1223122313100 is 13132213221.

It is a super-2 number, since 2×1223122313100² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2241427 + ... + 2733173.

It is an arithmetic number, because the mean of its divisors is an integer number (49157424904).

Almost surely, 2^{1223122313100} is an apocalyptic number.

1223122313100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223122313100 is an abundant number, since it is smaller than the sum of its proper divisors (2316212279988).

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

1223122313100 is a wasteful number, since it uses less digits than its factorization.

1223122313100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500055 (or 500048 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1223122313100 its reverse (13132213221), we get a palindrome (1236254526321).

The spelling of 1223122313100 in words is "one trillion, two hundred twenty-three billion, one hundred twenty-two million, three hundred thirteen thousand, one hundred".