1200001210220 has 12 divisors (see below), whose sum is σ = 2520002541504. Its totient is φ = 480000484080.

The previous prime is 1200001210193. The next prime is 1200001210231. The reversal of 1200001210220 is 220121000021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30000030236 + ... + 30000030275.

It is an arithmetic number, because the mean of its divisors is an integer number (210000211792).

Almost surely, 2^{1200001210220} is an apocalyptic number.

1200001210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200001210220 is an abundant number, since it is smaller than the sum of its proper divisors (1320001331284).

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

1200001210220 is a wasteful number, since it uses less digits than its factorization.

1200001210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60000060520 (or 60000060518 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1200001210220 its reverse (220121000021), we get a palindrome (1420122210241).

The spelling of 1200001210220 in words is "one trillion, two hundred billion, one million, two hundred ten thousand, two hundred twenty".