20011102192 has 10 divisors (see below), whose sum is σ = 38771510528. Its totient is φ = 10005551088.

The previous prime is 20011102171. The next prime is 20011102249. The reversal of 20011102192 is 29120111002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625346928 + ... + 625346959.

Almost surely, 2^20011102192 is an apocalyptic number.

It is an amenable number.

20011102192 is a deficient number, since it is larger than the sum of its proper divisors (18760408336).

20011102192 is a wasteful number, since it uses less digits than its factorization.

20011102192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250693895 (or 1250693889 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 20011102192 its reverse (29120111002), we get a palindrome (49131213194).

The spelling of 20011102192 in words is "twenty billion, eleven million, one hundred two thousand, one hundred ninety-two".