30202112221020 has 144 divisors (see below), whose sum is σ = 92721969194400. Its totient is φ = 7956706295808.

The previous prime is 30202112220989. The next prime is 30202112221091. The reversal of 30202112221020 is 2012221120203.

It is a super-2 number, since 2×30202112221020² (a number of 28 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 30202112220984 and 30202112221002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8293756 + ... + 11366204.

It is an arithmetic number, because the mean of its divisors is an integer number (643902563850).

Almost surely, 2^{30202112221020} is an apocalyptic number.

30202112221020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30202112221020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46360984597200).

30202112221020 is an abundant number, since it is smaller than the sum of its proper divisors (62519856973380).

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

30202112221020 is a wasteful number, since it uses less digits than its factorization.

30202112221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073124 (or 3073119 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 30202112221020 its reverse (2012221120203), we get a palindrome (32214333341223).

The spelling of 30202112221020 in words is "thirty trillion, two hundred two billion, one hundred twelve million, two hundred twenty-one thousand, twenty".