30221203122 has 48 divisors (see below), whose sum is σ = 75191519520. Its totient is φ = 8675942400.

The previous prime is 30221203121. The next prime is 30221203139. The reversal of 30221203122 is 22130212203.

It is a super-2 number, since 2×30221203122² (a number of 22 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 = 30221203095 and 30221203104.

It is not an unprimeable number, because it can be changed into a prime (30221203121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4012879 + ... + 4020402.

It is an arithmetic number, because the mean of its divisors is an integer number (1566489990).

Almost surely, 2^30221203122 is an apocalyptic number.

30221203122 is an abundant number, since it is smaller than the sum of its proper divisors (44970316398).

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

30221203122 is a wasteful number, since it uses less digits than its factorization.

30221203122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8033319 (or 8033316 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 30221203122 its reverse (22130212203), we get a palindrome (52351415325).

The spelling of 30221203122 in words is "thirty billion, two hundred twenty-one million, two hundred three thousand, one hundred twenty-two".