220222012202121 has 8 divisors (see below), whose sum is σ = 301565277970624. Its totient is φ = 142846710617520.

The previous prime is 220222012202119. The next prime is 220222012202189. The reversal of 220222012202121 is 121202210222022.

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

It is not a de Polignac number, because 220222012202121 - 2¹ = 220222012202119 is a prime.

It is a super-2 number, since 2×220222012202121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220222012206121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 991991045845 + ... + 991991046066.

It is an arithmetic number, because the mean of its divisors is an integer number (37695659746328).

Almost surely, 2^{220222012202121} is an apocalyptic number.

It is an amenable number.

220222012202121 is a deficient number, since it is larger than the sum of its proper divisors (81343265768503).

220222012202121 is a wasteful number, since it uses less digits than its factorization.

220222012202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983982091951.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 220222012202121 its reverse (121202210222022), we get a palindrome (341424222424143).

The spelling of 220222012202121 in words is "two hundred twenty trillion, two hundred twenty-two billion, twelve million, two hundred two thousand, one hundred twenty-one".