1212211353 has 8 divisors (see below), whose sum is σ = 1659965248. Its totient is φ = 786299184.

The previous prime is 1212211307. The next prime is 1212211373. The reversal of 1212211353 is 3531122121.

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

It is not a de Polignac number, because 1212211353 - 2⁸ = 1212211097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212211373) 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, 5460301 + ... + 5460522.

It is an arithmetic number, because the mean of its divisors is an integer number (207495656).

Almost surely, 2^1212211353 is an apocalyptic number.

It is an amenable number.

1212211353 is a deficient number, since it is larger than the sum of its proper divisors (447753895).

1212211353 is a wasteful number, since it uses less digits than its factorization.

1212211353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10920863.

The product of its digits is 360, while the sum is 21.

The square root of 1212211353 is about 34816.8257168858. The cubic root of 1212211353 is about 1066.2509939716.

Adding to 1212211353 its reverse (3531122121), we get a palindrome (4743333474).

The spelling of 1212211353 in words is "one billion, two hundred twelve million, two hundred eleven thousand, three hundred fifty-three".