21202220012214 has 16 divisors (see below), whose sum is σ = 42510186762480. Its totient is φ = 7049782214400.

The previous prime is 21202220012213. The next prime is 21202220012251. The reversal of 21202220012214 is 41221002220212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202220012213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4406111479 + ... + 4406116290.

It is an arithmetic number, because the mean of its divisors is an integer number (2656886672655).

Almost surely, 2^{21202220012214} is an apocalyptic number.

21202220012214 is an abundant number, since it is smaller than the sum of its proper divisors (21307966750266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21202220012214 is a wasteful number, since it uses less digits than its factorization.

21202220012214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8812228175.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 21202220012214 its reverse (41221002220212), we get a palindrome (62423222232426).

The spelling of 21202220012214 in words is "twenty-one trillion, two hundred two billion, two hundred twenty million, twelve thousand, two hundred fourteen".