1220672201 has 16 divisors (see below), whose sum is σ = 1418896128. Its totient is φ = 1028505600.

The previous prime is 1220672179. The next prime is 1220672221. The reversal of 1220672201 is 1022760221.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220672201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220672221) 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, 155081 + ... + 162761.

It is an arithmetic number, because the mean of its divisors is an integer number (88681008).

Almost surely, 2^1220672201 is an apocalyptic number.

It is an amenable number.

1220672201 is a deficient number, since it is larger than the sum of its proper divisors (198223927).

1220672201 is an equidigital number, since it uses as much as digits as its factorization.

1220672201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8072.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1220672201 is about 34938.1195973681. The cubic root of 1220672201 is about 1068.7259418635.

The spelling of 1220672201 in words is "one billion, two hundred twenty million, six hundred seventy-two thousand, two hundred one".