222220120121121 has 8 divisors (see below), whose sum is σ = 300715784442784. Its totient is φ = 145935601273440.

The previous prime is 222220120121117. The next prime is 222220120121143. The reversal of 222220120121121 is 121121021022222.

222220120121121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 222220120121121 - 2² = 222220120121117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222220120121821) 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, 552786368260 + ... + 552786368661.

It is an arithmetic number, because the mean of its divisors is an integer number (37589473055348).

Almost surely, 2^{222220120121121} is an apocalyptic number.

It is an amenable number.

222220120121121 is a deficient number, since it is larger than the sum of its proper divisors (78495664321663).

222220120121121 is a wasteful number, since it uses less digits than its factorization.

222220120121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105572736991.

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

Adding to 222220120121121 its reverse (121121021022222), we get a palindrome (343341141143343).

The spelling of 222220120121121 in words is "two hundred twenty-two trillion, two hundred twenty billion, one hundred twenty million, one hundred twenty-one thousand, one hundred twenty-one".