77122162201 has 32 divisors (see below), whose sum is σ = 93562011648. Its totient is φ = 62139147840.

The previous prime is 77122162199. The next prime is 77122162213. The reversal of 77122162201 is 10226122177.

It is not a de Polignac number, because 77122162201 - 2¹ = 77122162199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77122162291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14011816 + ... + 14017318.

It is an arithmetic number, because the mean of its divisors is an integer number (2923812864).

Almost surely, 2^77122162201 is an apocalyptic number.

It is an amenable number.

77122162201 is a deficient number, since it is larger than the sum of its proper divisors (16439849447).

77122162201 is a wasteful number, since it uses less digits than its factorization.

77122162201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7021.

The product of its (nonzero) digits is 4704, while the sum is 31.

Adding to 77122162201 its reverse (10226122177), we get a palindrome (87348284378).

The spelling of 77122162201 in words is "seventy-seven billion, one hundred twenty-two million, one hundred sixty-two thousand, two hundred one".