221122010222121 has 8 divisors (see below), whose sum is σ = 301685843404000. Its totient is φ = 143986425260832.

The previous prime is 221122010222083. The next prime is 221122010222123. The reversal of 221122010222121 is 121222010221122.

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

It is not a de Polignac number, because 221122010222121 - 2³¹ = 221119862738473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221122010222123) 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, 857062054996 + ... + 857062055253.

It is an arithmetic number, because the mean of its divisors is an integer number (37710730425500).

Almost surely, 2^{221122010222121} is an apocalyptic number.

It is an amenable number.

221122010222121 is a deficient number, since it is larger than the sum of its proper divisors (80563833181879).

221122010222121 is a wasteful number, since it uses less digits than its factorization.

221122010222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714124110295.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 221122010222121 its reverse (121222010221122), we get a palindrome (342344020443243).

Subtracting from 221122010222121 its reverse (121222010221122), we obtain a palindrome (99900000000999).

The spelling of 221122010222121 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, ten million, two hundred twenty-two thousand, one hundred twenty-one".