7700222220077 has 2 divisors, whose sum is σ = 7700222220078. Its totient is φ = 7700222220076.

The previous prime is 7700222220037. The next prime is 7700222220127.

7700222220077 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7670080399081 + 30141820996 = 2769491^2 + 173614^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 7700222220077 - 2¹² = 7700222215981 is a prime.

It is a super-3 number, since 3×7700222220077³ (a number of 40 digits) contains 333 as substring.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 7700222220077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7700222220037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3850111110038 + 3850111110039.

It is an arithmetic number, because the mean of its divisors is an integer number (3850111110039).

Almost surely, 2^{7700222220077} is an apocalyptic number.

It is an amenable number.

7700222220077 is a deficient number, since it is larger than the sum of its proper divisors (1).

7700222220077 is an equidigital number, since it uses as much as digits as its factorization.

7700222220077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76832, while the sum is 38.

The spelling of 7700222220077 in words is "seven trillion, seven hundred billion, two hundred twenty-two million, two hundred twenty thousand, seventy-seven".