1223142203025 has 60 divisors (see below), whose sum is σ = 2302824737884. Its totient is φ = 641648304000.

The previous prime is 1223142203021. The next prime is 1223142203047. The reversal of 1223142203025 is 5203022413221.

1223142203025 is a `hidden beast` number, since 1 + 2 + 231 + 422 + 0 + 3 + 0 + 2 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 15185139984 + 1207957063041 = 123228^2 + 1099071^2 .

It is not a de Polignac number, because 1223142203025 - 2² = 1223142203021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223142203025.

It is not an unprimeable number, because it can be changed into a prime (1223142203021) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 4827466 + ... + 5074515.

Almost surely, 2^{1223142203025} is an apocalyptic number.

1223142203025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1223142203025 is a deficient number, since it is larger than the sum of its proper divisors (1079682534859).

1223142203025 is an equidigital number, since it uses as much as digits as its factorization.

1223142203025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9902064 (or 9902050 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 1223142203025 its reverse (5203022413221), we get a palindrome (6426164616246).

The spelling of 1223142203025 in words is "one trillion, two hundred twenty-three billion, one hundred forty-two million, two hundred three thousand, twenty-five".