202001111222111 has 16 divisors (see below), whose sum is σ = 228626296694208. Its totient is φ = 177417231974400.

The previous prime is 202001111222089. The next prime is 202001111222137. The reversal of 202001111222111 is 111222111100202.

It is not a de Polignac number, because 202001111222111 - 2⁴⁶ = 131632367044447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202001111222111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202001111222161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6300311810 + ... + 6300343871.

It is an arithmetic number, because the mean of its divisors is an integer number (14289143543388).

Almost surely, 2^{202001111222111} is an apocalyptic number.

202001111222111 is a deficient number, since it is larger than the sum of its proper divisors (26625185472097).

202001111222111 is a wasteful number, since it uses less digits than its factorization.

202001111222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12600655762.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 202001111222111 its reverse (111222111100202), we get a palindrome (313223222322313).

The spelling of 202001111222111 in words is "two hundred two trillion, one billion, one hundred eleven million, two hundred twenty-two thousand, one hundred eleven".