220221212221310 has 64 divisors (see below), whose sum is σ = 424978722330624. Its totient is φ = 81949147632000.

The previous prime is 220221212221301. The next prime is 220221212221313. The reversal of 220221212221310 is 13122212122022.

It is a super-2 number, since 2×220221212221310² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220221212221313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16636895 + ... + 26781125.

It is an arithmetic number, because the mean of its divisors is an integer number (6640292536416).

Almost surely, 2^{220221212221310} is an apocalyptic number.

220221212221310 is a deficient number, since it is larger than the sum of its proper divisors (204757510109314).

220221212221310 is a wasteful number, since it uses less digits than its factorization.

220221212221310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10146849.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 220221212221310 its reverse (13122212122022), we get a palindrome (233343424343332).

The spelling of 220221212221310 in words is "two hundred twenty trillion, two hundred twenty-one billion, two hundred twelve million, two hundred twenty-one thousand, three hundred ten".