201120022111 has 4 divisors (see below), whose sum is σ = 201554407072. Its totient is φ = 200685637152.

The previous prime is 201120022091. The next prime is 201120022121. The reversal of 201120022111 is 111220021102.

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

It is a cyclic number.

It is not a de Polignac number, because 201120022111 - 2¹⁹ = 201119497823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201120022091 and 201120022100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201120022121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217191786 + ... + 217192711.

It is an arithmetic number, because the mean of its divisors is an integer number (50388601768).

Almost surely, 2^201120022111 is an apocalyptic number.

201120022111 is a deficient number, since it is larger than the sum of its proper divisors (434384961).

201120022111 is an equidigital number, since it uses as much as digits as its factorization.

201120022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434384960.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201120022111 its reverse (111220021102), we get a palindrome (312340043213).

The spelling of 201120022111 in words is "two hundred one billion, one hundred twenty million, twenty-two thousand, one hundred eleven".