220210100211220 has 72 divisors (see below), whose sum is σ = 537958336829256. Its totient is φ = 75498287106816.

The previous prime is 220210100211169. The next prime is 220210100211223. The reversal of 220210100211220 is 22112001012022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10425640223376 + 209784459987844 = 3228876^2 + 14483938^2 .

It is a super-2 number, since 2×220210100211220² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220210100211194 and 220210100211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220210100211223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28628602 + ... + 35496718.

It is an arithmetic number, because the mean of its divisors is an integer number (7471643567073).

Almost surely, 2^{220210100211220} is an apocalyptic number.

220210100211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220210100211220 is an abundant number, since it is smaller than the sum of its proper divisors (317748236618036).

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

220210100211220 is a wasteful number, since it uses less digits than its factorization.

220210100211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6900857 (or 6900848 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220210100211220 its reverse (22112001012022), we get a palindrome (242322101223242).

The spelling of 220210100211220 in words is "two hundred twenty trillion, two hundred ten billion, one hundred million, two hundred eleven thousand, two hundred twenty".