1212010002220 has 24 divisors (see below), whose sum is σ = 2546077817808. Its totient is φ = 484640798400.

The previous prime is 1212010002211. The next prime is 1212010002251. The reversal of 1212010002220 is 222000102121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212010002220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10139251 + ... + 10258090.

It is an arithmetic number, because the mean of its divisors is an integer number (106086575742).

Almost surely, 2^{1212010002220} is an apocalyptic number.

1212010002220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212010002220 is an abundant number, since it is smaller than the sum of its proper divisors (1334067815588).

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

1212010002220 is a wasteful number, since it uses less digits than its factorization.

1212010002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20400321 (or 20400319 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1212010002220 its reverse (222000102121), we get a palindrome (1434010104341).

Subtracting from 1212010002220 its reverse (222000102121), we obtain a palindrome (990009900099).

The spelling of 1212010002220 in words is "one trillion, two hundred twelve billion, ten million, two thousand, two hundred twenty".