220100121200111 has 16 divisors (see below), whose sum is σ = 239240411351040. Its totient is φ = 201720072526560.

The previous prime is 220100121200101. The next prime is 220100121200117. The reversal of 220100121200111 is 111002121001022.

It is a de Polignac number, because none of the positive numbers 2^k-220100121200111 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 (220100121200117) 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, 62651900 + ... + 66071633.

It is an arithmetic number, because the mean of its divisors is an integer number (14952525709440).

Almost surely, 2^{220100121200111} is an apocalyptic number.

220100121200111 is a deficient number, since it is larger than the sum of its proper divisors (19140290150929).

220100121200111 is a wasteful number, since it uses less digits than its factorization.

220100121200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128726486.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 220100121200111 its reverse (111002121001022), we get a palindrome (331102242201133).

The spelling of 220100121200111 in words is "two hundred twenty trillion, one hundred billion, one hundred twenty-one million, two hundred thousand, one hundred eleven".