77001222011 has 8 divisors (see below), whose sum is σ = 88003212000. Its totient is φ = 65999685888.

The previous prime is 77001221909. The next prime is 77001222013. The reversal of 77001222011 is 11022210077.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77001222011 - 2²² = 76997027707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77001222013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412865 + ... + 569613.

It is an arithmetic number, because the mean of its divisors is an integer number (11000401500).

Almost surely, 2^77001222011 is an apocalyptic number.

77001222011 is a deficient number, since it is larger than the sum of its proper divisors (11001989989).

77001222011 is a wasteful number, since it uses less digits than its factorization.

77001222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226933.

The product of its (nonzero) digits is 392, while the sum is 23.

Adding to 77001222011 its reverse (11022210077), we get a palindrome (88023432088).

The spelling of 77001222011 in words is "seventy-seven billion, one million, two hundred twenty-two thousand, eleven".