1210002100220 has 12 divisors (see below), whose sum is σ = 2541004410504. Its totient is φ = 484000840080.

The previous prime is 1210002100217. The next prime is 1210002100243. The reversal of 1210002100220 is 220012000121.

It is a happy number.

It is a congruent 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, 30250052486 + ... + 30250052525.

It is an arithmetic number, because the mean of its divisors is an integer number (211750367542).

Almost surely, 2^{1210002100220} is an apocalyptic number.

1210002100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210002100220 is an abundant number, since it is smaller than the sum of its proper divisors (1331002310284).

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

1210002100220 is a wasteful number, since it uses less digits than its factorization.

1210002100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60500105020 (or 60500105018 counting only the distinct ones).

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

Adding to 1210002100220 its reverse (220012000121), we get a palindrome (1430014100341).

The spelling of 1210002100220 in words is "one trillion, two hundred ten billion, two million, one hundred thousand, two hundred twenty".