1201709228 has 12 divisors (see below), whose sum is σ = 2103235512. Its totient is φ = 600784800.

The previous prime is 1201709219. The next prime is 1201709291. The reversal of 1201709228 is 8229071021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1201709194 and 1201709203.

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, 51851 + ... + 71357.

It is an arithmetic number, because the mean of its divisors is an integer number (175269626).

Almost surely, 2^1201709228 is an apocalyptic number.

It is an amenable number.

1201709228 is a deficient number, since it is larger than the sum of its proper divisors (901526284).

1201709228 is a wasteful number, since it uses less digits than its factorization.

1201709228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34912 (or 34910 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 1201709228 is about 34665.6779538494. The cubic root of 1201709228 is about 1063.1628647652.

The spelling of 1201709228 in words is "one billion, two hundred one million, seven hundred nine thousand, two hundred twenty-eight".