1211230210 has 8 divisors (see below), whose sum is σ = 2180214396. Its totient is φ = 484492080.

The previous prime is 1211230199. The next prime is 1211230243. The reversal of 1211230210 is 120321121.

It can be written as a sum of positive squares in 2 ways, for example, as 1097530641 + 113699569 = 33129^2 + 10663^2 .

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

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, 60561501 + ... + 60561520.

Almost surely, 2^1211230210 is an apocalyptic number.

1211230210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211230210 is a deficient number, since it is larger than the sum of its proper divisors (968984186).

1211230210 is a wasteful number, since it uses less digits than its factorization.

1211230210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121123028.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1211230210 is about 34802.7327949976. The cubic root of 1211230210 is about 1065.9632479260.

Adding to 1211230210 its reverse (120321121), we get a palindrome (1331551331).

The spelling of 1211230210 in words is "one billion, two hundred eleven million, two hundred thirty thousand, two hundred ten".