1213312220010 has 80 divisors (see below), whose sum is σ = 3559049204832. Its totient is φ = 294136293600.

The previous prime is 1213312219993. The next prime is 1213312220027. The reversal of 1213312220010 is 100222133121.

1213312220010 is a `hidden beast` number, since 121 + 3 + 312 + 220 + 0 + 10 = 666.

It is an interprime number because it is at equal distance from previous prime (1213312219993) and next prime (1213312220027).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 68078196 + ... + 68096015.

Almost surely, 2^{1213312220010} is an apocalyptic number.

1213312220010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213312220010 is an abundant number, since it is smaller than the sum of its proper divisors (2345736984822).

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

1213312220010 is a wasteful number, since it uses less digits than its factorization.

1213312220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136174241 (or 136174232 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1213312220010 its reverse (100222133121), we get a palindrome (1313534353131).

The spelling of 1213312220010 in words is "one trillion, two hundred thirteen billion, three hundred twelve million, two hundred twenty thousand, ten".