1225400111 has 8 divisors (see below), whose sum is σ = 1350352080. Its totient is φ = 1104832512.

The previous prime is 1225400093. The next prime is 1225400123. The reversal of 1225400111 is 1110045221.

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

It is a cyclic number.

It is not a de Polignac number, because 1225400111 - 2¹⁴ = 1225383727 is a prime.

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 1225400111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225400161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1095506 + ... + 1096623.

It is an arithmetic number, because the mean of its divisors is an integer number (168794010).

Almost surely, 2^1225400111 is an apocalyptic number.

1225400111 is a deficient number, since it is larger than the sum of its proper divisors (124951969).

1225400111 is a wasteful number, since it uses less digits than its factorization.

1225400111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192185.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1225400111 is about 35005.7154047735. The cubic root of 1225400111 is about 1070.1039614247.

Adding to 1225400111 its reverse (1110045221), we get a palindrome (2335445332).

The spelling of 1225400111 in words is "one billion, two hundred twenty-five million, four hundred thousand, one hundred eleven".