1220025226 has 24 divisors (see below), whose sum is σ = 2240866080. Its totient is φ = 495347832.

The previous prime is 1220025223. The next prime is 1220025227. The reversal of 1220025226 is 6225200221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1220025197 and 1220025206.

It is not an unprimeable number, because it can be changed into a prime (1220025223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 325750 + ... + 329473.

It is an arithmetic number, because the mean of its divisors is an integer number (93369420).

Almost surely, 2^1220025226 is an apocalyptic number.

1220025226 is a deficient number, since it is larger than the sum of its proper divisors (1020840854).

1220025226 is a wasteful number, since it uses less digits than its factorization.

1220025226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655258 (or 655251 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1220025226 is about 34928.8595004188. The cubic root of 1220025226 is about 1068.5370947787.

Adding to 1220025226 its reverse (6225200221), we get a palindrome (7445225447).

The spelling of 1220025226 in words is "one billion, two hundred twenty million, twenty-five thousand, two hundred twenty-six".