121222201120001 has 4 divisors (see below), whose sum is σ = 121487457578052. Its totient is φ = 120956944661952.

The previous prime is 121222201119989. The next prime is 121222201120003. The reversal of 121222201120001 is 100021102222121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42150998064400 + 79071203055601 = 6492380^2 + 8892199^2 .

It is a cyclic number.

It is not a de Polignac number, because 121222201120001 - 2¹⁴ = 121222201103617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121222201120003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132628228340 + ... + 132628229253.

It is an arithmetic number, because the mean of its divisors is an integer number (30371864394513).

Almost surely, 2^{121222201120001} is an apocalyptic number.

It is an amenable number.

121222201120001 is a deficient number, since it is larger than the sum of its proper divisors (265256458051).

121222201120001 is an equidigital number, since it uses as much as digits as its factorization.

121222201120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265256458050.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121222201120001 its reverse (100021102222121), we get a palindrome (221243303342122).

The spelling of 121222201120001 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, two hundred one million, one hundred twenty thousand, one".