1225252002 has 32 divisors (see below), whose sum is σ = 2675167488. Its totient is φ = 371834496.

The previous prime is 1225251991. The next prime is 1225252009. The reversal of 1225252002 is 2002525221.

It is a self number, because there is not a number n which added to its sum of digits gives 1225252002.

It is not an unprimeable number, because it can be changed into a prime (1225252009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101898 + ... + 113285.

It is an arithmetic number, because the mean of its divisors is an integer number (83598984).

Almost surely, 2^1225252002 is an apocalyptic number.

1225252002 is an abundant number, since it is smaller than the sum of its proper divisors (1449915486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225252002 is a wasteful number, since it uses less digits than its factorization.

1225252002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215274.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 1225252002 is about 35003.5998434447. The cubic root of 1225252002 is about 1070.0608466869.

Adding to 1225252002 its reverse (2002525221), we get a palindrome (3227777223).

The spelling of 1225252002 in words is "one billion, two hundred twenty-five million, two hundred fifty-two thousand, two".