1221332012030 has 128 divisors (see below), whose sum is σ = 2452104990720. Its totient is φ = 435154936320.

The previous prime is 1221332011997. The next prime is 1221332012051. The reversal of 1221332012030 is 302102331221.

It is a junction number, because it is equal to n+sod(n) for n = 1221332011993 and 1221332012011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 125659511 + ... + 125669229.

It is an arithmetic number, because the mean of its divisors is an integer number (19157070240).

Almost surely, 2^{1221332012030} is an apocalyptic number.

1221332012030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221332012030 is an abundant number, since it is smaller than the sum of its proper divisors (1230772978690).

1221332012030 is a wasteful number, since it uses less digits than its factorization.

1221332012030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10074.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1221332012030 its reverse (302102331221), we get a palindrome (1523434343251).

The spelling of 1221332012030 in words is "one trillion, two hundred twenty-one billion, three hundred thirty-two million, twelve thousand, thirty".