12021202120051 has 2 divisors, whose sum is σ = 12021202120052. Its totient is φ = 12021202120050.

The previous prime is 12021202120013. The next prime is 12021202120093. The reversal of 12021202120051 is 15002120212021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12021202120051 - 2¹³ = 12021202111859 is a prime.

It is a super-2 number, since 2×12021202120051² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12021202120001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010601060025 + 6010601060026.

It is an arithmetic number, because the mean of its divisors is an integer number (6010601060026).

Almost surely, 2^{12021202120051} is an apocalyptic number.

12021202120051 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021202120051 is an equidigital number, since it uses as much as digits as its factorization.

12021202120051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 12021202120051 its reverse (15002120212021), we get a palindrome (27023322332072).

The spelling of 12021202120051 in words is "twelve trillion, twenty-one billion, two hundred two million, one hundred twenty thousand, fifty-one".