10201222111 has 4 divisors (see below), whose sum is σ = 10530293824. Its totient is φ = 9872150400.

The previous prime is 10201222081. The next prime is 10201222121. The reversal of 10201222111 is 11122210201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11122210201 = 1013 ⋅10979477.

It is a cyclic number.

It is not a de Polignac number, because 10201222111 - 2⁷ = 10201221983 is a prime.

It is a super-3 number, since 3×10201222111³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10201222091 and 10201222100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201222121) 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, 164535810 + ... + 164535871.

It is an arithmetic number, because the mean of its divisors is an integer number (2632573456).

Almost surely, 2^10201222111 is an apocalyptic number.

10201222111 is a deficient number, since it is larger than the sum of its proper divisors (329071713).

10201222111 is an equidigital number, since it uses as much as digits as its factorization.

10201222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329071712.

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

Adding to 10201222111 its reverse (11122210201), we get a palindrome (21323432312).

The spelling of 10201222111 in words is "ten billion, two hundred one million, two hundred twenty-two thousand, one hundred eleven".