220001102102121 has 32 divisors (see below), whose sum is σ = 298395738393600. Its totient is φ = 144138427715520.

The previous prime is 220001102102083. The next prime is 220001102102123. The reversal of 220001102102121 is 121201201100022.

It is not a de Polignac number, because 220001102102121 - 2¹⁰ = 220001102101097 is a prime.

It is a super-2 number, since 2×220001102102121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220001102102121.

It is not an unprimeable number, because it can be changed into a prime (220001102102123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11770420386 + ... + 11770439076.

It is an arithmetic number, because the mean of its divisors is an integer number (9324866824800).

Almost surely, 2^{220001102102121} is an apocalyptic number.

It is an amenable number.

220001102102121 is a deficient number, since it is larger than the sum of its proper divisors (78394636291479).

220001102102121 is a wasteful number, since it uses less digits than its factorization.

220001102102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35069.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 220001102102121 its reverse (121201201100022), we get a palindrome (341202303202143).

The spelling of 220001102102121 in words is "two hundred twenty trillion, one billion, one hundred two million, one hundred two thousand, one hundred twenty-one".