1211120206 has 8 divisors (see below), whose sum is σ = 1816861104. Its totient is φ = 605499840.

The previous prime is 1211120203. The next prime is 1211120213. The reversal of 1211120206 is 6020211121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1211120206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211120203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1726 + ... + 49246.

It is an arithmetic number, because the mean of its divisors is an integer number (227107638).

Almost surely, 2^1211120206 is an apocalyptic number.

1211120206 is a deficient number, since it is larger than the sum of its proper divisors (605740898).

1211120206 is a wasteful number, since it uses less digits than its factorization.

1211120206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60266.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1211120206 is about 34801.1523659778. The cubic root of 1211120206 is about 1065.9309766670.

Adding to 1211120206 its reverse (6020211121), we get a palindrome (7231331327).

The spelling of 1211120206 in words is "one billion, two hundred eleven million, one hundred twenty thousand, two hundred six".