22021210121189 has 2 divisors, whose sum is σ = 22021210121190. Its totient is φ = 22021210121188.

The previous prime is 22021210121161. The next prime is 22021210121227. The reversal of 22021210121189 is 98112101212022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18258999033025 + 3762211088164 = 4273055^2 + 1939642^2 .

It is a cyclic number.

It is not a de Polignac number, because 22021210121189 - 2¹⁶ = 22021210055653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22021210121129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010605060594 + 11010605060595.

It is an arithmetic number, because the mean of its divisors is an integer number (11010605060595).

Almost surely, 2^{22021210121189} is an apocalyptic number.

It is an amenable number.

22021210121189 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021210121189 is an equidigital number, since it uses as much as digits as its factorization.

22021210121189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 32.

The spelling of 22021210121189 in words is "twenty-two trillion, twenty-one billion, two hundred ten million, one hundred twenty-one thousand, one hundred eighty-nine".