20201122102 has 24 divisors (see below), whose sum is σ = 35506211544. Its totient is φ = 8594423712.

The previous prime is 20201122043. The next prime is 20201122121. The reversal of 20201122102 is 20122110202.

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 in 11 ways as a sum of consecutive naturals, for example, 738888 + ... + 765739.

It is an arithmetic number, because the mean of its divisors is an integer number (1479425481).

Almost surely, 2^20201122102 is an apocalyptic number.

20201122102 is a deficient number, since it is larger than the sum of its proper divisors (15305089442).

20201122102 is a wasteful number, since it uses less digits than its factorization.

20201122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504780 (or 1504773 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20201122102 its reverse (20122110202), we get a palindrome (40323232304).

The spelling of 20201122102 in words is "twenty billion, two hundred one million, one hundred twenty-two thousand, one hundred two".