20111522330 has 16 divisors (see below), whose sum is σ = 37449042120. Its totient is φ = 7767208512.

The previous prime is 20111522293. The next prime is 20111522351. The reversal of 20111522330 is 3322511102.

It can be written as a sum of positive squares in 4 ways, for example, as 16161274129 + 3950248201 = 127127^2 + 62851^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34674749 + ... + 34675328.

Almost surely, 2^20111522330 is an apocalyptic number.

20111522330 is a deficient number, since it is larger than the sum of its proper divisors (17337519790).

20111522330 is a wasteful number, since it uses less digits than its factorization.

20111522330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69350113.

The product of its (nonzero) digits is 360, while the sum is 20.

The spelling of 20111522330 in words is "twenty billion, one hundred eleven million, five hundred twenty-two thousand, three hundred thirty".