1051201220567 has 4 divisors (see below), whose sum is σ = 1052791540776. Its totient is φ = 1049610900360.

The previous prime is 1051201220557. The next prime is 1051201220569. The reversal of 1051201220567 is 7650221021501.

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

It is a cyclic number.

It is not a de Polignac number, because 1051201220567 - 2³² = 1046906253271 is a prime.

It is a super-2 number, since 2×1051201220567² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051201220569) 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, 795159113 + ... + 795160434.

It is an arithmetic number, because the mean of its divisors is an integer number (263197885194).

Almost surely, 2^{1051201220567} is an apocalyptic number.

1051201220567 is a deficient number, since it is larger than the sum of its proper divisors (1590320209).

1051201220567 is an equidigital number, since it uses as much as digits as its factorization.

1051201220567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590320208.

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 1051201220567 in words is "one trillion, fifty-one billion, two hundred one million, two hundred twenty thousand, five hundred sixty-seven".