30729222672228 has 72 divisors (see below), whose sum is σ = 80359032584376. Its totient is φ = 9894300096000.

The previous prime is 30729222672199. The next prime is 30729222672257. The reversal of 30729222672228 is 82227622292703.

30729222672228 is a `hidden beast` number, since 3 + 0 + 72 + 92 + 2 + 267 + 2 + 228 = 666.

It is an interprime number because it is at equal distance from previous prime (30729222672199) and next prime (30729222672257).

It can be written as a sum of positive squares in 4 ways, for example, as 742230494784 + 29986992177444 = 861528^2 + 5476038^2 .

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, 102916551 + ... + 103214702.

It is an arithmetic number, because the mean of its divisors is an integer number (1116097674783).

Almost surely, 2^{30729222672228} is an apocalyptic number.

It is an amenable number.

30729222672228 is an abundant number, since it is smaller than the sum of its proper divisors (49629809912148).

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

30729222672228 is a wasteful number, since it uses less digits than its factorization.

30729222672228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206131405 (or 206131400 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 54.

The spelling of 30729222672228 in words is "thirty trillion, seven hundred twenty-nine billion, two hundred twenty-two million, six hundred seventy-two thousand, two hundred twenty-eight".