212201212201220 has 96 divisors (see below), whose sum is σ = 494763768898560. Its totient is φ = 75800638995840.

The previous prime is 212201212201219. The next prime is 212201212201241. The reversal of 212201212201220 is 22102212102212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 212201212201192 and 212201212201201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14758874 + ... + 25342193.

It is an arithmetic number, because the mean of its divisors is an integer number (5153789259360).

Almost surely, 2^{212201212201220} is an apocalyptic number.

212201212201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212201212201220 is an abundant number, since it is smaller than the sum of its proper divisors (282562556697340).

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

212201212201220 is a wasteful number, since it uses less digits than its factorization.

212201212201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40101513 (or 40101511 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 212201212201220 its reverse (22102212102212), we get a palindrome (234303424303432).

The spelling of 212201212201220 in words is "two hundred twelve trillion, two hundred one billion, two hundred twelve million, two hundred one thousand, two hundred twenty".