2012220231251 has 2 divisors, whose sum is σ = 2012220231252. Its totient is φ = 2012220231250.

The previous prime is 2012220231157. The next prime is 2012220231293. The reversal of 2012220231251 is 1521320222102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2012220231251 - 2¹⁰ = 2012220230227 is a prime.

It is not a weakly prime, because it can be changed into another prime (2012220236251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006110115625 + 1006110115626.

It is an arithmetic number, because the mean of its divisors is an integer number (1006110115626).

Almost surely, 2^{2012220231251} is an apocalyptic number.

2012220231251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012220231251 is an equidigital number, since it uses as much as digits as its factorization.

2012220231251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 2012220231251 its reverse (1521320222102), we get a palindrome (3533540453353).

The spelling of 2012220231251 in words is "two trillion, twelve billion, two hundred twenty million, two hundred thirty-one thousand, two hundred fifty-one".