22010219977 has 2 divisors, whose sum is σ = 22010219978. Its totient is φ = 22010219976.

The previous prime is 22010219963. The next prime is 22010220031. The reversal of 22010219977 is 77991201022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12898372041 + 9111847936 = 113571^2 + 95456^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22010219977 is a prime.

It is not a weakly prime, because it can be changed into another prime (22010219947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005109988 + 11005109989.

It is an arithmetic number, because the mean of its divisors is an integer number (11005109989).

Almost surely, 2^22010219977 is an apocalyptic number.

It is an amenable number.

22010219977 is a deficient number, since it is larger than the sum of its proper divisors (1).

22010219977 is an equidigital number, since it uses as much as digits as its factorization.

22010219977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 40.

The spelling of 22010219977 in words is "twenty-two billion, ten million, two hundred nineteen thousand, nine hundred seventy-seven".