220102102121 has 8 divisors (see below), whose sum is σ = 240116444064. Its totient is φ = 200088603520.

The previous prime is 220102102049. The next prime is 220102102151. The reversal of 220102102121 is 121201201022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220102102121 - 2¹⁴ = 220102085737 is a prime.

It is a super-2 number, since 2×220102102121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220102102096 and 220102102105.

It is not an unprimeable number, because it can be changed into a prime (220102102151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415886 + ... + 783048.

It is an arithmetic number, because the mean of its divisors is an integer number (30014555508).

Almost surely, 2^220102102121 is an apocalyptic number.

It is an amenable number.

220102102121 is a deficient number, since it is larger than the sum of its proper divisors (20014341943).

220102102121 is a wasteful number, since it uses less digits than its factorization.

220102102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421671.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 220102102121 its reverse (121201201022), we get a palindrome (341303303143).

It can be divided in two parts, 220102 and 102121, that added together give a palindrome (322223).

The spelling of 220102102121 in words is "two hundred twenty billion, one hundred two million, one hundred two thousand, one hundred twenty-one".