22000022000077 has 12 divisors (see below), whose sum is σ = 25604303681628. Its totient is φ = 18823548233600.

The previous prime is 22000022000057. The next prime is 22000022000093. The reversal of 22000022000077 is 77000022000022.

It can be written as a sum of positive squares in 2 ways, for example, as 19048982456196 + 2951039543881 = 4364514^2 + 1717859^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22000022000077 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000022000017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5347596874 + ... + 5347600987.

It is an arithmetic number, because the mean of its divisors is an integer number (2133691973469).

Almost surely, 2^{22000022000077} is an apocalyptic number.

It is an amenable number.

22000022000077 is a deficient number, since it is larger than the sum of its proper divisors (3604281681551).

22000022000077 is a wasteful number, since it uses less digits than its factorization.

22000022000077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10695197900 (or 10695197889 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 22.

Adding to 22000022000077 its reverse (77000022000022), we get a palindrome (99000044000099).

Subtracting 22000022000077 from its reverse (77000022000022), we obtain a palindrome (54999999999945).

The spelling of 22000022000077 in words is "twenty-two trillion, twenty-two million, seventy-seven", and thus it is an aban number and an uban number.