1212220303210 has 32 divisors (see below), whose sum is σ = 2624958253440. Its totient is φ = 393743737152.

The previous prime is 1212220303201. The next prime is 1212220303223. The reversal of 1212220303210 is 123030222121.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 455720589 + ... + 455723248.

It is an arithmetic number, because the mean of its divisors is an integer number (82029945420).

Almost surely, 2^{1212220303210} is an apocalyptic number.

1212220303210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212220303210 is an abundant number, since it is smaller than the sum of its proper divisors (1412737950230).

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

1212220303210 is a wasteful number, since it uses less digits than its factorization.

1212220303210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911443870.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1212220303210 its reverse (123030222121), we get a palindrome (1335250525331).

The spelling of 1212220303210 in words is "one trillion, two hundred twelve billion, two hundred twenty million, three hundred three thousand, two hundred ten".