21230022003212 has 12 divisors (see below), whose sum is σ = 40530042006216. Its totient is φ = 9650010001440.

The previous prime is 21230022003199. The next prime is 21230022003217.

It is a happy number.

21230022003212 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×21230022003212² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21230022003217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241250249993 + ... + 241250250080.

It is an arithmetic number, because the mean of its divisors is an integer number (3377503500518).

Almost surely, 2^{21230022003212} is an apocalyptic number.

21230022003212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21230022003212 is a deficient number, since it is larger than the sum of its proper divisors (19300020003004).

21230022003212 is a wasteful number, since it uses less digits than its factorization.

21230022003212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482500500088 (or 482500500086 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

It can be divided in two parts, 2123002 and 2003212, that added together give a palindrome (4126214).

The spelling of 21230022003212 in words is "twenty-one trillion, two hundred thirty billion, twenty-two million, three thousand, two hundred twelve".