22051061749 has 2 divisors, whose sum is σ = 22051061750. Its totient is φ = 22051061748.

The previous prime is 22051061737. The next prime is 22051061761. The reversal of 22051061749 is 94716015022.

It is a balanced prime because it is at equal distance from previous prime (22051061737) and next prime (22051061761).

It can be written as a sum of positive squares in only one way, i.e., 11835916849 + 10215144900 = 108793^2 + 101070^2 .

It is a cyclic number.

It is not a de Polignac number, because 22051061749 - 2¹⁷ = 22050930677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22051061729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11025530874 + 11025530875.

It is an arithmetic number, because the mean of its divisors is an integer number (11025530875).

Almost surely, 2^22051061749 is an apocalyptic number.

It is an amenable number.

22051061749 is a deficient number, since it is larger than the sum of its proper divisors (1).

22051061749 is an equidigital number, since it uses as much as digits as its factorization.

22051061749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 22051061749 in words is "twenty-two billion, fifty-one million, sixty-one thousand, seven hundred forty-nine".