111212110012051 has 2 divisors, whose sum is σ = 111212110012052. Its totient is φ = 111212110012050.

The previous prime is 111212110012043. The next prime is 111212110012123. The reversal of 111212110012051 is 150210011212111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111212110012051 - 2³ = 111212110012043 is a prime.

It is not a weakly prime, because it can be changed into another prime (111212110012151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55606055006025 + 55606055006026.

It is an arithmetic number, because the mean of its divisors is an integer number (55606055006026).

Almost surely, 2^{111212110012051} is an apocalyptic number.

111212110012051 is a deficient number, since it is larger than the sum of its proper divisors (1).

111212110012051 is an equidigital number, since it uses as much as digits as its factorization.

111212110012051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 19.

Adding to 111212110012051 its reverse (150210011212111), we get a palindrome (261422121224162).

The spelling of 111212110012051 in words is "one hundred eleven trillion, two hundred twelve billion, one hundred ten million, twelve thousand, fifty-one".