220211210101212 has 144 divisors (see below), whose sum is σ = 613759819825152. Its totient is φ = 66016505312640.

The previous prime is 220211210101153. The next prime is 220211210101219. The reversal of 220211210101212 is 212101012112022.

220211210101212 is a `hidden beast` number, since 2 + 20 + 211 + 210 + 10 + 1 + 212 = 666.

220211210101212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220211210101219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37958053 + ... + 43373219.

It is an arithmetic number, because the mean of its divisors is an integer number (4262220971008).

Almost surely, 2^{220211210101212} is an apocalyptic number.

220211210101212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220211210101212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306879909912576).

220211210101212 is an abundant number, since it is smaller than the sum of its proper divisors (393548609723940).

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

220211210101212 is a wasteful number, since it uses less digits than its factorization.

220211210101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5416288 (or 5416283 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 220211210101212 its reverse (212101012112022), we get a palindrome (432312222213234).

The spelling of 220211210101212 in words is "two hundred twenty trillion, two hundred eleven billion, two hundred ten million, one hundred one thousand, two hundred twelve".