220102100121 has 16 divisors (see below), whose sum is σ = 322346327040. Its totient is φ = 132967858320.

The previous prime is 220102100117. The next prime is 220102100131. The reversal of 220102100121 is 121001201022.

It is not a de Polignac number, because 220102100121 - 2² = 220102100117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220102100097 and 220102100106.

It is not an unprimeable number, because it can be changed into a prime (220102100131) 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, 83943045 + ... + 83945666.

It is an arithmetic number, because the mean of its divisors is an integer number (20146645440).

Almost surely, 2^220102100121 is an apocalyptic number.

It is an amenable number.

220102100121 is a deficient number, since it is larger than the sum of its proper divisors (102244226919).

220102100121 is a wasteful number, since it uses less digits than its factorization.

220102100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167888756.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 220102100121 its reverse (121001201022), we get a palindrome (341103301143).

The spelling of 220102100121 in words is "two hundred twenty billion, one hundred two million, one hundred thousand, one hundred twenty-one".