22051071651 has 16 divisors (see below), whose sum is σ = 33898996224. Its totient is φ = 12489101184.

The previous prime is 22051071641. The next prime is 22051071767. The reversal of 22051071651 is 15617015022.

It is not a de Polignac number, because 22051071651 - 2⁵ = 22051071619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22051071641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4643871 + ... + 4648616.

It is an arithmetic number, because the mean of its divisors is an integer number (2118687264).

Almost surely, 2^22051071651 is an apocalyptic number.

22051071651 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22051071651 is a deficient number, since it is larger than the sum of its proper divisors (11847924573).

22051071651 is a wasteful number, since it uses less digits than its factorization.

22051071651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9292610.

The product of its (nonzero) digits is 4200, while the sum is 30.

Adding to 22051071651 its reverse (15617015022), we get a palindrome (37668086673).

The spelling of 22051071651 in words is "twenty-two billion, fifty-one million, seventy-one thousand, six hundred fifty-one".