1212223013 has 8 divisors (see below), whose sum is σ = 1245618048. Its totient is φ = 1179144864.

The previous prime is 1212223007. The next prime is 1212223043. The reversal of 1212223013 is 3103222121.

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

It is a cyclic number.

It is not a de Polignac number, because 1212223013 - 2²² = 1208028709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212222982 and 1212223000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212223003) 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, 71456 + ... + 86777.

It is an arithmetic number, because the mean of its divisors is an integer number (155702256).

Almost surely, 2^1212223013 is an apocalyptic number.

It is an amenable number.

1212223013 is a deficient number, since it is larger than the sum of its proper divisors (33395035).

1212223013 is a wasteful number, since it uses less digits than its factorization.

1212223013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158443.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1212223013 is about 34816.9931642582. The cubic root of 1212223013 is about 1066.2544126402.

Adding to 1212223013 its reverse (3103222121), we get a palindrome (4315445134).

The spelling of 1212223013 in words is "one billion, two hundred twelve million, two hundred twenty-three thousand, thirteen".