1225651101226 has 8 divisors (see below), whose sum is σ = 1881231922944. Its totient is φ = 598573793580.

The previous prime is 1225651101221. The next prime is 1225651101263. The reversal of 1225651101226 is 6221011565221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1225651101191 and 1225651101200.

It is not an unprimeable number, because it can be changed into a prime (1225651101221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7125878410 + ... + 7125878581.

It is an arithmetic number, because the mean of its divisors is an integer number (235153990368).

Almost surely, 2^{1225651101226} is an apocalyptic number.

1225651101226 is a deficient number, since it is larger than the sum of its proper divisors (655580821718).

1225651101226 is a wasteful number, since it uses less digits than its factorization.

1225651101226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14251757036.

The product of its (nonzero) digits is 14400, while the sum is 34.

Adding to 1225651101226 its reverse (6221011565221), we get a palindrome (7446662666447).

The spelling of 1225651101226 in words is "one trillion, two hundred twenty-five billion, six hundred fifty-one million, one hundred one thousand, two hundred twenty-six".