222101000000121 has 32 divisors (see below), whose sum is σ = 331790561652096. Its totient is φ = 130967338752000.

The previous prime is 222101000000063. The next prime is 222101000000197. The reversal of 222101000000121 is 121000000101222.

It is not a de Polignac number, because 222101000000121 - 2¹⁰ = 222100999999097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222101000000097 and 222101000000106.

It is not an unprimeable number, because it can be changed into a prime (222101000000021) 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, 128790441 + ... + 130503561.

It is an arithmetic number, because the mean of its divisors is an integer number (10368455051628).

Almost surely, 2^{222101000000121} is an apocalyptic number.

It is an amenable number.

222101000000121 is a deficient number, since it is larger than the sum of its proper divisors (109689561651975).

222101000000121 is a wasteful number, since it uses less digits than its factorization.

222101000000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819353.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 222101000000121 its reverse (121000000101222), we get a palindrome (343101000101343).

The spelling of 222101000000121 in words is "two hundred twenty-two trillion, one hundred one billion, one hundred twenty-one", and thus it is an aban number.