22221021119977 has 2 divisors, whose sum is σ = 22221021119978. Its totient is φ = 22221021119976.

The previous prime is 22221021119939. The next prime is 22221021120007. The reversal of 22221021119977 is 77991112012222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16208442492841 + 6012578627136 = 4025971^2 + 2452056^2 .

It is a cyclic number.

It is not a de Polignac number, because 22221021119977 - 2¹¹ = 22221021117929 is a prime.

It is a super-2 number, since 2×22221021119977² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22221021119677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110510559988 + 11110510559989.

It is an arithmetic number, because the mean of its divisors is an integer number (11110510559989).

Almost surely, 2^{22221021119977} is an apocalyptic number.

It is an amenable number.

22221021119977 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221021119977 is an equidigital number, since it uses as much as digits as its factorization.

22221021119977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 46.

The spelling of 22221021119977 in words is "twenty-two trillion, two hundred twenty-one billion, twenty-one million, one hundred nineteen thousand, nine hundred seventy-seven".