1221003301030 has 16 divisors (see below), whose sum is σ = 2327088644640. Its totient is φ = 459671830912.

The previous prime is 1221003300983. The next prime is 1221003301039. The reversal of 1221003301030 is 301033001221.

It is a super-2 number, since 2×1221003301030² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1221003300995 and 1221003301013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221003301039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3591186010 + ... + 3591186349.

It is an arithmetic number, because the mean of its divisors is an integer number (145443040290).

Almost surely, 2^{1221003301030} is an apocalyptic number.

1221003301030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1221003301030 is a deficient number, since it is larger than the sum of its proper divisors (1106085343610).

1221003301030 is a wasteful number, since it uses less digits than its factorization.

1221003301030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7182372383.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 1221003301030 its reverse (301033001221), we get a palindrome (1522036302251).

The spelling of 1221003301030 in words is "one trillion, two hundred twenty-one billion, three million, three hundred one thousand, thirty".