1225101012045 has 32 divisors (see below), whose sum is σ = 1963966193280. Its totient is φ = 652119552000.

The previous prime is 1225101012043. The next prime is 1225101012053. The reversal of 1225101012045 is 5402101015221.

It is a happy number.

It is not a de Polignac number, because 1225101012045 - 2¹ = 1225101012043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225101012041) 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, 43738045 + ... + 43766045.

It is an arithmetic number, because the mean of its divisors is an integer number (61373943540).

Almost surely, 2^{1225101012045} is an apocalyptic number.

1225101012045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1225101012045 is a deficient number, since it is larger than the sum of its proper divisors (738865181235).

1225101012045 is a wasteful number, since it uses less digits than its factorization.

1225101012045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33565.

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 1225101012045 its reverse (5402101015221), we get a palindrome (6627202027266).

The spelling of 1225101012045 in words is "one trillion, two hundred twenty-five billion, one hundred one million, twelve thousand, forty-five".