21212233202301 has 16 divisors (see below), whose sum is σ = 29281964794368. Its totient is φ = 13644702489600.

The previous prime is 21212233202299. The next prime is 21212233202357. The reversal of 21212233202301 is 10320233221212.

It is not a de Polignac number, because 21212233202301 - 2¹ = 21212233202299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21212233202371) 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, 338378940 + ... + 338441621.

It is an arithmetic number, because the mean of its divisors is an integer number (1830122799648).

Almost surely, 2^{21212233202301} is an apocalyptic number.

It is an amenable number.

21212233202301 is a deficient number, since it is larger than the sum of its proper divisors (8069731592067).

21212233202301 is a wasteful number, since it uses less digits than its factorization.

21212233202301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676820932.

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

Adding to 21212233202301 its reverse (10320233221212), we get a palindrome (31532466423513).

The spelling of 21212233202301 in words is "twenty-one trillion, two hundred twelve billion, two hundred thirty-three million, two hundred two thousand, three hundred one".