20011220094 has 16 divisors (see below), whose sum is σ = 40024805760. Its totient is φ = 6670012440.

The previous prime is 20011220093. The next prime is 20011220113. The reversal of 20011220094 is 49002211002.

It is a self number, because there is not a number n which added to its sum of digits gives 20011220094.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011220093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22927 + ... + 201365.

It is an arithmetic number, because the mean of its divisors is an integer number (2501550360).

Almost surely, 2^20011220094 is an apocalyptic number.

20011220094 is an abundant number, since it is smaller than the sum of its proper divisors (20013585666).

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

20011220094 is a wasteful number, since it uses less digits than its factorization.

20011220094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197135.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 20011220094 its reverse (49002211002), we get a palindrome (69013431096).

The spelling of 20011220094 in words is "twenty billion, eleven million, two hundred twenty thousand, ninety-four".