20011211102 has 8 divisors (see below), whose sum is σ = 30066930000. Its totient is φ = 9988901104.

The previous prime is 20011211083. The next prime is 20011211117. The reversal of 20011211102 is 20111211002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8350727 + ... + 8353122.

It is an arithmetic number, because the mean of its divisors is an integer number (3758366250).

Almost surely, 2^20011211102 is an apocalyptic number.

20011211102 is a deficient number, since it is larger than the sum of its proper divisors (10055718898).

20011211102 is a wasteful number, since it uses less digits than its factorization.

20011211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16704450.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20011211102 its reverse (20111211002), we get a palindrome (40122422104).

The spelling of 20011211102 in words is "twenty billion, eleven million, two hundred eleven thousand, one hundred two".