21222015414201 has 12 divisors (see below), whose sum is σ = 35033168302912. Its totient is φ = 12126865950936.

The previous prime is 21222015414191. The next prime is 21222015414203. The reversal of 21222015414201 is 10241451022212.

21222015414201 is a `hidden beast` number, since 2 + 1 + 2 + 220 + 1 + 5 + 414 + 20 + 1 = 666.

It is not a de Polignac number, because 21222015414201 - 2⁹ = 21222015413689 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21222015414203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168428693701 + ... + 168428693826.

Almost surely, 2^{21222015414201} is an apocalyptic number.

21222015414201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21222015414201 is a deficient number, since it is larger than the sum of its proper divisors (13811152888711).

21222015414201 is a wasteful number, since it uses less digits than its factorization.

21222015414201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336857387540 (or 336857387537 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

Adding to 21222015414201 its reverse (10241451022212), we get a palindrome (31463466436413).

The spelling of 21222015414201 in words is "twenty-one trillion, two hundred twenty-two billion, fifteen million, four hundred fourteen thousand, two hundred one".