222120101120121 has 6 divisors (see below), whose sum is σ = 320840146062410. Its totient is φ = 148080067413408.

The previous prime is 222120101120039. The next prime is 222120101120131. The reversal of 222120101120121 is 121021101021222.

222120101120121 is a `hidden beast` number, since 2 + 221 + 201 + 0 + 1 + 120 + 121 = 666.

It can be written as a sum of positive squares in only one way, i.e., 220773120366096 + 1346980754025 = 14858436^2 + 1160595^2 .

It is not a de Polignac number, because 222120101120121 - 2¹⁴ = 222120101103737 is a prime.

It is a super-2 number, since 2×222120101120121² (a number of 29 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 = 222120101120094 and 222120101120103.

It is not an unprimeable number, because it can be changed into a prime (222120101120131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12340005617776 + ... + 12340005617793.

Almost surely, 2^{222120101120121} is an apocalyptic number.

It is an amenable number.

222120101120121 is a deficient number, since it is larger than the sum of its proper divisors (98720044942289).

222120101120121 is a wasteful number, since it uses less digits than its factorization.

222120101120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24680011235575 (or 24680011235572 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222120101120121 its reverse (121021101021222), we get a palindrome (343141202141343).

The spelling of 222120101120121 in words is "two hundred twenty-two trillion, one hundred twenty billion, one hundred one million, one hundred twenty thousand, one hundred twenty-one".