30212202240 has 216 divisors, whose sum is σ = 114034375728. Its totient is φ = 7324139520.

The previous prime is 30212202169. The next prime is 30212202269. The reversal of 30212202240 is 4220221203.

30212202240 is a `hidden beast` number, since 302 + 122 + 0 + 2 + 240 = 666.

It is a super-2 number, since 2×30212202240² (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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7512 + ... + 245928.

Almost surely, 2^30212202240 is an apocalyptic number.

30212202240 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 30212202240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57017187864).

30212202240 is an abundant number, since it is smaller than the sum of its proper divisors (83822173488).

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

30212202240 is a wasteful number, since it uses less digits than its factorization.

30212202240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238455 (or 238438 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 30212202240 its reverse (4220221203), we get a palindrome (34432423443).

The spelling of 30212202240 in words is "thirty billion, two hundred twelve million, two hundred two thousand, two hundred forty".