30055223220 has 48 divisors (see below), whose sum is σ = 91805047488. Its totient is φ = 7286114560.

The previous prime is 30055223183. The next prime is 30055223243. The reversal of 30055223220 is 2232255003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22768449 + ... + 22769768.

It is an arithmetic number, because the mean of its divisors is an integer number (1912605156).

Almost surely, 2^30055223220 is an apocalyptic number.

30055223220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30055223220 is an abundant number, since it is smaller than the sum of its proper divisors (61749824268).

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

30055223220 is a wasteful number, since it uses less digits than its factorization.

30055223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45538240 (or 45538238 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

Adding to 30055223220 its reverse (2232255003), we get a palindrome (32287478223).

It can be divided in two parts, 3005 and 5223220, that added together give a palindrome (5226225).

The spelling of 30055223220 in words is "thirty billion, fifty-five million, two hundred twenty-three thousand, two hundred twenty".