1225120202 has 8 divisors (see below), whose sum is σ = 1840097412. Its totient is φ = 611754400.

The previous prime is 1225120201. The next prime is 1225120219. The reversal of 1225120202 is 2020215221.

It can be written as a sum of positive squares in 2 ways, for example, as 1127683561 + 97436641 = 33581^2 + 9871^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1225120201) 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, 400949 + ... + 403992.

Almost surely, 2^1225120202 is an apocalyptic number.

1225120202 is a deficient number, since it is larger than the sum of its proper divisors (614977210).

1225120202 is an equidigital number, since it uses as much as digits as its factorization.

1225120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805704.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1225120202 is about 35001.7171293067. The cubic root of 1225120202 is about 1070.0224766001.

Adding to 1225120202 its reverse (2020215221), we get a palindrome (3245335423).

The spelling of 1225120202 in words is "one billion, two hundred twenty-five million, one hundred twenty thousand, two hundred two".