212201000220 has 96 divisors (see below), whose sum is σ = 650046249216. Its totient is φ = 51294361600.

The previous prime is 212201000177. The next prime is 212201000227. The reversal of 212201000220 is 22000102212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 212201000196 and 212201000205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212201000227) 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, 234261 + ... + 692300.

It is an arithmetic number, because the mean of its divisors is an integer number (6771315096).

Almost surely, 2^212201000220 is an apocalyptic number.

212201000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212201000220 is an abundant number, since it is smaller than the sum of its proper divisors (437845248996).

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

212201000220 is a wasteful number, since it uses less digits than its factorization.

212201000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926931 (or 926929 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 212201000220 its reverse (22000102212), we get a palindrome (234201102432).

The spelling of 212201000220 in words is "two hundred twelve billion, two hundred one million, two hundred twenty", and thus it is an aban number.