202111101124 has 6 divisors (see below), whose sum is σ = 353694426974. Its totient is φ = 101055550560.

The previous prime is 202111101121. The next prime is 202111101131. The reversal of 202111101124 is 421101111202.

It can be written as a sum of positive squares in only one way, i.e., 173830624900 + 28280476224 = 416930^2 + 168168^2 .

It is a junction number, because it is equal to n+sod(n) for n = 202111101098 and 202111101107.

It is not an unprimeable number, because it can be changed into a prime (202111101121) by changing a digit.

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 as a sum of consecutive naturals, namely, 25263887637 + ... + 25263887644.

Almost surely, 2^202111101124 is an apocalyptic number.

It is an amenable number.

202111101124 is a deficient number, since it is larger than the sum of its proper divisors (151583325850).

202111101124 is a wasteful number, since it uses less digits than its factorization.

202111101124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50527775285 (or 50527775283 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 202111101124 its reverse (421101111202), we get a palindrome (623212212326).

The spelling of 202111101124 in words is "two hundred two billion, one hundred eleven million, one hundred one thousand, one hundred twenty-four".