30002221021220 has 192 divisors, whose sum is σ = 77111153763840. Its totient is φ = 9570923839488.

The previous prime is 30002221021193. The next prime is 30002221021273. The reversal of 30002221021220 is 2212012220003.

It is a super-2 number, since 2×30002221021220² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 1852781444 + ... + 1852797636.

It is an arithmetic number, because the mean of its divisors is an integer number (401620592520).

Almost surely, 2^{30002221021220} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30002221021220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38555576881920).

30002221021220 is an abundant number, since it is smaller than the sum of its proper divisors (47108932742620).

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

30002221021220 is a wasteful number, since it uses less digits than its factorization.

30002221021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25062 (or 25060 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 30002221021220 its reverse (2212012220003), we get a palindrome (32214233241223).

The spelling of 30002221021220 in words is "thirty trillion, two billion, two hundred twenty-one million, twenty-one thousand, two hundred twenty".