1212133210 has 8 divisors (see below), whose sum is σ = 2181839796. Its totient is φ = 484853280.

The previous prime is 1212133199. The next prime is 1212133211. The reversal of 1212133210 is 123312121.

It can be written as a sum of positive squares in 2 ways, for example, as 1173953169 + 38180041 = 34263^2 + 6179^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1212133211) 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, 60606651 + ... + 60606670.

Almost surely, 2^1212133210 is an apocalyptic number.

1212133210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212133210 is a deficient number, since it is larger than the sum of its proper divisors (969706586).

1212133210 is a wasteful number, since it uses less digits than its factorization.

1212133210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121213328.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1212133210 is about 34815.7034971290. The cubic root of 1212133210 is about 1066.2280821689.

Adding to 1212133210 its reverse (123312121), we get a palindrome (1335445331).

The spelling of 1212133210 in words is "one billion, two hundred twelve million, one hundred thirty-three thousand, two hundred ten".