1212210013 has 12 divisors (see below), whose sum is σ = 1458780960. Its totient is φ = 984024936.

The previous prime is 1212210001. The next prime is 1212210023. The reversal of 1212210013 is 3100122121.

It is not a de Polignac number, because 1212210013 - 2⁹ = 1212209501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212209975 and 1212210002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212210023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 400018 + ... + 403036.

It is an arithmetic number, because the mean of its divisors is an integer number (121565080).

Almost surely, 2^1212210013 is an apocalyptic number.

It is an amenable number.

1212210013 is a deficient number, since it is larger than the sum of its proper divisors (246570947).

1212210013 is an frugal number, since it uses more digits than its factorization.

1212210013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6064 (or 3045 counting only the distinct ones).

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

The square root of 1212210013 is about 34816.8064733111. The cubic root of 1212210013 is about 1066.2506010871.

Adding to 1212210013 its reverse (3100122121), we get a palindrome (4312332134).

The spelling of 1212210013 in words is "one billion, two hundred twelve million, two hundred ten thousand, thirteen".