20201102122 has 4 divisors (see below), whose sum is σ = 30301653186. Its totient is φ = 10100551060.

The previous prime is 20201102111. The next prime is 20201102143. The reversal of 20201102122 is 22120110202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 17854571641 + 2346530481 = 133621^2 + 48441^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050275529 + ... + 5050275532.

Almost surely, 2^20201102122 is an apocalyptic number.

20201102122 is a deficient number, since it is larger than the sum of its proper divisors (10100551064).

20201102122 is a wasteful number, since it uses less digits than its factorization.

20201102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100551063.

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

Adding to 20201102122 its reverse (22120110202), we get a palindrome (42321212324).

The spelling of 20201102122 in words is "twenty billion, two hundred one million, one hundred two thousand, one hundred twenty-two".