1220025206 has 8 divisors (see below), whose sum is σ = 1832112984. Its totient is φ = 609320880.

The previous prime is 1220025199. The next prime is 1220025211. The reversal of 1220025206 is 6025200221.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343655 + ... + 347186.

It is an arithmetic number, because the mean of its divisors is an integer number (229014123).

Almost surely, 2^1220025206 is an apocalyptic number.

1220025206 is a deficient number, since it is larger than the sum of its proper divisors (612087778).

1220025206 is an equidigital number, since it uses as much as digits as its factorization.

1220025206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691726.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1220025206 is about 34928.8592141226. The cubic root of 1220025206 is about 1068.5370889398.

Adding to 1220025206 its reverse (6025200221), we get a palindrome (7245225427).

The spelling of 1220025206 in words is "one billion, two hundred twenty million, twenty-five thousand, two hundred six".