212122222001220 has 96 divisors (see below), whose sum is σ = 629671963124736. Its totient is φ = 53261726169600.

The previous prime is 212122222001213. The next prime is 212122222001227. The reversal of 212122222001220 is 22100222221212.

It is an interprime number because it is at equal distance from previous prime (212122222001213) and next prime (212122222001227).

It is not an unprimeable number, because it can be changed into a prime (212122222001227) 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, 1541069091 + ... + 1541206730.

It is an arithmetic number, because the mean of its divisors is an integer number (6559082949216).

Almost surely, 2^{212122222001220} is an apocalyptic number.

212122222001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212122222001220 is an abundant number, since it is smaller than the sum of its proper divisors (417549741123516).

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

212122222001220 is a wasteful number, since it uses less digits than its factorization.

212122222001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082275901 (or 3082275899 counting only the distinct ones).

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

Adding to 212122222001220 its reverse (22100222221212), we get a palindrome (234222444222432).

The spelling of 212122222001220 in words is "two hundred twelve trillion, one hundred twenty-two billion, two hundred twenty-two million, one thousand, two hundred twenty".