10202212111 has 12 divisors (see below), whose sum is σ = 12625562352. Its totient is φ = 8072078976.

The previous prime is 10202212087. The next prime is 10202212129. The reversal of 10202212111 is 11121220201.

It is not a de Polignac number, because 10202212111 - 2²¹ = 10200114959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 10202212091 and 10202212100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202216111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4310826 + ... + 4313191.

It is an arithmetic number, because the mean of its divisors is an integer number (1052130196).

Almost surely, 2^10202212111 is an apocalyptic number.

10202212111 is a deficient number, since it is larger than the sum of its proper divisors (2423350241).

10202212111 is an equidigital number, since it uses as much as digits as its factorization.

10202212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8624050 (or 8624037 counting only the distinct ones).

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

Adding to 10202212111 its reverse (11121220201), we get a palindrome (21323432312).

The spelling of 10202212111 in words is "ten billion, two hundred two million, two hundred twelve thousand, one hundred eleven".