201212002220 has 48 divisors (see below), whose sum is σ = 445160136960. Its totient is φ = 76184351424.

The previous prime is 201212002213. The next prime is 201212002231. The reversal of 201212002220 is 22200212102.

It is a junction number, because it is equal to n+sod(n) for n = 201212002195 and 201212002204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228017 + ... + 674103.

It is an arithmetic number, because the mean of its divisors is an integer number (9274169520).

Almost surely, 2^201212002220 is an apocalyptic number.

201212002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201212002220 is an abundant number, since it is smaller than the sum of its proper divisors (243948134740).

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

201212002220 is a wasteful number, since it uses less digits than its factorization.

201212002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447302 (or 447300 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 201212002220 its reverse (22200212102), we get a palindrome (223412214322).

The spelling of 201212002220 in words is "two hundred one billion, two hundred twelve million, two thousand, two hundred twenty".