1228219201 has 8 divisors (see below), whose sum is σ = 1361841408. Its totient is φ = 1098258000.

The previous prime is 1228219169. The next prime is 1228219207. The reversal of 1228219201 is 1029128221.

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

It is a cyclic number.

It is not a de Polignac number, because 1228219201 - 2⁵ = 1228219169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1228219201.

It is not an unprimeable number, because it can be changed into a prime (1228219207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 914545 + ... + 915886.

It is an arithmetic number, because the mean of its divisors is an integer number (170230176).

Almost surely, 2^1228219201 is an apocalyptic number.

1228219201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1228219201 is a deficient number, since it is larger than the sum of its proper divisors (133622207).

1228219201 is a wasteful number, since it uses less digits than its factorization.

1228219201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830503.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1228219201 is about 35045.9584117770. The cubic root of 1228219201 is about 1070.9239409383.

The spelling of 1228219201 in words is "one billion, two hundred twenty-eight million, two hundred nineteen thousand, two hundred one".