220202100121111 has 16 divisors (see below), whose sum is σ = 221404800960000. Its totient is φ = 219000377727648.

The previous prime is 220202100121079. The next prime is 220202100121117. The reversal of 220202100121111 is 111121001202022.

It is a cyclic number.

It is not a de Polignac number, because 220202100121111 - 2⁵ = 220202100121079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220202100121117) 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, 8680639350 + ... + 8680664716.

It is an arithmetic number, because the mean of its divisors is an integer number (13837800060000).

Almost surely, 2^{220202100121111} is an apocalyptic number.

220202100121111 is a deficient number, since it is larger than the sum of its proper divisors (1202700838889).

220202100121111 is a wasteful number, since it uses less digits than its factorization.

220202100121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42798.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 220202100121111 its reverse (111121001202022), we get a palindrome (331323101323133).

The spelling of 220202100121111 in words is "two hundred twenty trillion, two hundred two billion, one hundred million, one hundred twenty-one thousand, one hundred eleven".