22002121202077 has 2 divisors, whose sum is σ = 22002121202078. Its totient is φ = 22002121202076.

The previous prime is 22002121202071. The next prime is 22002121202143. The reversal of 22002121202077 is 77020212120022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18270401323321 + 3731719878756 = 4274389^2 + 1931766^2 .

It is a cyclic number.

It is not a de Polignac number, because 22002121202077 - 2²⁷ = 22001986984349 is a prime.

It is a super-2 number, since 2×22002121202077² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22002121202071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11001060601038 + 11001060601039.

It is an arithmetic number, because the mean of its divisors is an integer number (11001060601039).

Almost surely, 2^{22002121202077} is an apocalyptic number.

It is an amenable number.

22002121202077 is a deficient number, since it is larger than the sum of its proper divisors (1).

22002121202077 is an equidigital number, since it uses as much as digits as its factorization.

22002121202077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 28.

Adding to 22002121202077 its reverse (77020212120022), we get a palindrome (99022333322099).

The spelling of 22002121202077 in words is "twenty-two trillion, two billion, one hundred twenty-one million, two hundred two thousand, seventy-seven".