21312222032301 has 16 divisors (see below), whose sum is σ = 29315175396864. Its totient is φ = 13762152327744.

The previous prime is 21312222032291. The next prime is 21312222032323. The reversal of 21312222032301 is 10323022221312.

It is not a de Polignac number, because 21312222032301 - 2⁶ = 21312222032237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21312222032701) 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, 430473006 + ... + 430522511.

It is an arithmetic number, because the mean of its divisors is an integer number (1832198462304).

Almost surely, 2^{21312222032301} is an apocalyptic number.

It is an amenable number.

21312222032301 is a deficient number, since it is larger than the sum of its proper divisors (8002953364563).

21312222032301 is a wasteful number, since it uses less digits than its factorization.

21312222032301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860995780.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21312222032301 its reverse (10323022221312), we get a palindrome (31635244253613).

The spelling of 21312222032301 in words is "twenty-one trillion, three hundred twelve billion, two hundred twenty-two million, thirty-two thousand, three hundred one".