1221413054310 has 192 divisors, whose sum is σ = 3384704232000. Its totient is φ = 316681892352.

The previous prime is 1221413054299. The next prime is 1221413054327. The reversal of 1221413054310 is 134503141221.

1221413054310 is a `hidden beast` number, since 1 + 2 + 2 + 1 + 41 + 305 + 4 + 310 = 666.

It is a super-2 number, since 2×1221413054310² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 153652216 + ... + 153660164.

It is an arithmetic number, because the mean of its divisors is an integer number (17628667875).

Almost surely, 2^{1221413054310} is an apocalyptic number.

1221413054310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1221413054310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1692352116000).

1221413054310 is an abundant number, since it is smaller than the sum of its proper divisors (2163291177690).

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

1221413054310 is a wasteful number, since it uses less digits than its factorization.

1221413054310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9717 (or 9705 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 1221413054310 its reverse (134503141221), we get a palindrome (1355916195531).

The spelling of 1221413054310 in words is "one trillion, two hundred twenty-one billion, four hundred thirteen million, fifty-four thousand, three hundred ten".