20011111200228 has 24 divisors (see below), whose sum is σ = 46937056642560. Its totient is φ = 6635446994080.

The previous prime is 20011111200203. The next prime is 20011111200229. The reversal of 20011111200228 is 82200211111002.

It is not an unprimeable number, because it can be changed into a prime (20011111200229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4365423363 + ... + 4365427946.

It is an arithmetic number, because the mean of its divisors is an integer number (1955710693440).

Almost surely, 2^{20011111200228} is an apocalyptic number.

It is an amenable number.

20011111200228 is an abundant number, since it is smaller than the sum of its proper divisors (26925945442332).

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

20011111200228 is a wasteful number, since it uses less digits than its factorization.

20011111200228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8730851507 (or 8730851505 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

The spelling of 20011111200228 in words is "twenty trillion, eleven billion, one hundred eleven million, two hundred thousand, two hundred twenty-eight".