1222413021125 has 32 divisors (see below), whose sum is σ = 1554586356960. Its totient is φ = 959336601600.

The previous prime is 1222413021091. The next prime is 1222413021127. The reversal of 1222413021125 is 5211203142221.

It can be written as a sum of positive squares in 16 ways, for example, as 1209861403969 + 12551617156 = 1099937^2 + 112034^2 .

It is not a de Polignac number, because 1222413021125 - 2²⁰ = 1222411972549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222413021094 and 1222413021103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222413021127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79737461 + ... + 79752789.

It is an arithmetic number, because the mean of its divisors is an integer number (48580823655).

Almost surely, 2^{1222413021125} is an apocalyptic number.

It is an amenable number.

1222413021125 is a deficient number, since it is larger than the sum of its proper divisors (332173335835).

1222413021125 is a wasteful number, since it uses less digits than its factorization.

1222413021125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27434 (or 27424 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 1222413021125 its reverse (5211203142221), we get a palindrome (6433616163346).

The spelling of 1222413021125 in words is "one trillion, two hundred twenty-two billion, four hundred thirteen million, twenty-one thousand, one hundred twenty-five".