22212049 has 2 divisors, whose sum is σ = 22212050.
Its totient is φ = 22212048.
The previous prime is 22212019. The next prime is 22212077. The reversal of 22212049 is 94021222.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 20930625 + 1281424 = 4575^2 + 1132^2
It is a cyclic number.
It is not a de Polignac number, because 22212049 - 25 = 22212017 is a prime.
It is not a weakly prime, because it can be changed into another prime (22212019) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11106024 + 11106025.
It is an arithmetic number, because the mean of its divisors is an integer number (11106025).
Almost surely, 222212049 is an apocalyptic number.
It is an amenable number.
22212049 is a deficient number, since it is larger than the sum of its proper divisors (1).
22212049 is an equidigital number, since it uses as much as digits as its factorization.
22212049 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 576, while the sum is 22.
The square root of 22212049 is about 4712.9660512251.
The cubic root of 22212049 is about 281.1013130791.
The spelling of 22212049 in words is "twenty-two million, two hundred twelve thousand, forty-nine".