12121210010213 has 16 divisors (see below), whose sum is σ = 12573978278400. Its totient is φ = 11672423394240.

The previous prime is 12121210010207. The next prime is 12121210010243. The reversal of 12121210010213 is 31201001212121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12121210010213 - 2¹⁴ = 12121209993829 is a prime.

It is a super-2 number, since 2×12121210010213² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12121210010191 and 12121210010200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121210010243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4973183 + ... + 6998211.

It is an arithmetic number, because the mean of its divisors is an integer number (785873642400).

Almost surely, 2^{12121210010213} is an apocalyptic number.

It is an amenable number.

12121210010213 is a deficient number, since it is larger than the sum of its proper divisors (452768268187).

12121210010213 is a wasteful number, since it uses less digits than its factorization.

12121210010213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026012.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12121210010213 its reverse (31201001212121), we get a palindrome (43322211222334).

The spelling of 12121210010213 in words is "twelve trillion, one hundred twenty-one billion, two hundred ten million, ten thousand, two hundred thirteen".