22150535421 has 32 divisors (see below), whose sum is σ = 34065803520. Its totient is φ = 12540731904.

The previous prime is 22150535387. The next prime is 22150535423. The reversal of 22150535421 is 12453505122.

It is not a de Polignac number, because 22150535421 - 2¹⁴ = 22150519037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22150535423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1054065 + ... + 1074873.

It is an arithmetic number, because the mean of its divisors is an integer number (1064556360).

Almost surely, 2^22150535421 is an apocalyptic number.

22150535421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22150535421 is a deficient number, since it is larger than the sum of its proper divisors (11915268099).

22150535421 is a wasteful number, since it uses less digits than its factorization.

22150535421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21285.

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 22150535421 in words is "twenty-two billion, one hundred fifty million, five hundred thirty-five thousand, four hundred twenty-one".