30620562221 has 16 divisors (see below), whose sum is σ = 32174074800. Its totient is φ = 29113044480.

The previous prime is 30620562209. The next prime is 30620562233. The reversal of 30620562221 is 12226502603.

It is an interprime number because it is at equal distance from previous prime (30620562209) and next prime (30620562233).

It can be written as a sum of positive squares in 8 ways, for example, as 81252196 + 30539310025 = 9014^2 + 174755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30620562221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30620562121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276491 + ... + 371063.

It is an arithmetic number, because the mean of its divisors is an integer number (2010879675).

Almost surely, 2^30620562221 is an apocalyptic number.

It is an amenable number.

30620562221 is a deficient number, since it is larger than the sum of its proper divisors (1553512579).

30620562221 is a wasteful number, since it uses less digits than its factorization.

30620562221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94816.

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 30620562221 in words is "thirty billion, six hundred twenty million, five hundred sixty-two thousand, two hundred twenty-one".