30202121020220 has 12 divisors (see below), whose sum is σ = 63424454142504. Its totient is φ = 12080848408080.

The previous prime is 30202121020189. The next prime is 30202121020243. The reversal of 30202121020220 is 2202012120203.

It is a super-2 number, since 2×30202121020220² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755053025486 + ... + 755053025525.

It is an arithmetic number, because the mean of its divisors is an integer number (5285371178542).

Almost surely, 2^{30202121020220} is an apocalyptic number.

It is an amenable number.

30202121020220 is an abundant number, since it is smaller than the sum of its proper divisors (33222333122284).

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

30202121020220 is a wasteful number, since it uses less digits than its factorization.

30202121020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510106051020 (or 1510106051018 counting only the distinct ones).

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

Adding to 30202121020220 its reverse (2202012120203), we get a palindrome (32404133140423).

The spelling of 30202121020220 in words is "thirty trillion, two hundred two billion, one hundred twenty-one million, twenty thousand, two hundred twenty".