222012112102121 has 16 divisors (see below), whose sum is σ = 243035132719680. Its totient is φ = 201129789094080.

The previous prime is 222012112102111. The next prime is 222012112102129. The reversal of 222012112102121 is 121201211210222.

It is not a de Polignac number, because 222012112102121 - 2³⁴ = 221994932232937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222012112102093 and 222012112102102.

It is not an unprimeable number, because it can be changed into a prime (222012112102129) 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, 10493726 + ... + 23540231.

It is an arithmetic number, because the mean of its divisors is an integer number (15189695794980).

Almost surely, 2^{222012112102121} is an apocalyptic number.

It is an amenable number.

222012112102121 is a deficient number, since it is larger than the sum of its proper divisors (21023020617559).

222012112102121 is a wasteful number, since it uses less digits than its factorization.

222012112102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34036024.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222012112102121 its reverse (121201211210222), we get a palindrome (343213323312343).

The spelling of 222012112102121 in words is "two hundred twenty-two trillion, twelve billion, one hundred twelve million, one hundred two thousand, one hundred twenty-one".