2051222101567 has 4 divisors (see below), whose sum is σ = 2051225215720. Its totient is φ = 2051218987416.

The previous prime is 2051222101547. The next prime is 2051222101583. The reversal of 2051222101567 is 7651012221502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2051222101567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051222101547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137892 + ... + 2030137.

It is an arithmetic number, because the mean of its divisors is an integer number (512806303930).

Almost surely, 2^{2051222101567} is an apocalyptic number.

2051222101567 is a deficient number, since it is larger than the sum of its proper divisors (3114153).

2051222101567 is an equidigital number, since it uses as much as digits as its factorization.

2051222101567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3114152.

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 2051222101567 in words is "two trillion, fifty-one billion, two hundred twenty-two million, one hundred one thousand, five hundred sixty-seven".