201202012111 has 4 divisors (see below), whose sum is σ = 201364666552. Its totient is φ = 201039357672.

The previous prime is 201202012061. The next prime is 201202012181. The reversal of 201202012111 is 111210202102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111210202102 = 2 ⋅55605101051.

It is a cyclic number.

It is not a de Polignac number, because 201202012111 - 2¹⁵ = 201201979343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201202012091 and 201202012100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201202012181) 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, 81325365 + ... + 81327838.

It is an arithmetic number, because the mean of its divisors is an integer number (50341166638).

Almost surely, 2^201202012111 is an apocalyptic number.

201202012111 is a deficient number, since it is larger than the sum of its proper divisors (162654441).

201202012111 is a wasteful number, since it uses less digits than its factorization.

201202012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162654440.

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

Adding to 201202012111 its reverse (111210202102), we get a palindrome (312412214213).

The spelling of 201202012111 in words is "two hundred one billion, two hundred two million, twelve thousand, one hundred eleven".