22129801501 has 2 divisors, whose sum is σ = 22129801502. Its totient is φ = 22129801500.

The previous prime is 22129801411. The next prime is 22129801517. The reversal of 22129801501 is 10510892122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21557874276 + 571927225 = 146826^2 + 23915^2 .

It is a cyclic number.

It is not a de Polignac number, because 22129801501 - 2⁹ = 22129800989 is a prime.

It is a super-2 number, since 2×22129801501² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22129801531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11064900750 + 11064900751.

It is an arithmetic number, because the mean of its divisors is an integer number (11064900751).

Almost surely, 2^22129801501 is an apocalyptic number.

It is an amenable number.

22129801501 is a deficient number, since it is larger than the sum of its proper divisors (1).

22129801501 is an equidigital number, since it uses as much as digits as its factorization.

22129801501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 31.

The spelling of 22129801501 in words is "twenty-two billion, one hundred twenty-nine million, eight hundred one thousand, five hundred one".