22061203877 has 2 divisors, whose sum is σ = 22061203878. Its totient is φ = 22061203876.

The previous prime is 22061203811. The next prime is 22061203889. The reversal of 22061203877 is 77830216022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21503582881 + 557620996 = 146641^2 + 23614^2 .

It is a cyclic number.

It is not a de Polignac number, because 22061203877 - 2²⁴ = 22044426661 is a prime.

It is a super-2 number, since 2×22061203877² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22061203877.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22061233877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11030601938 + 11030601939.

It is an arithmetic number, because the mean of its divisors is an integer number (11030601939).

Almost surely, 2^22061203877 is an apocalyptic number.

It is an amenable number.

22061203877 is a deficient number, since it is larger than the sum of its proper divisors (1).

22061203877 is an equidigital number, since it uses as much as digits as its factorization.

22061203877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 38.

Adding to 22061203877 its reverse (77830216022), we get a palindrome (99891419899).

The spelling of 22061203877 in words is "twenty-two billion, sixty-one million, two hundred three thousand, eight hundred seventy-seven".