120121212222001 has 8 divisors (see below), whose sum is σ = 121894376567040. Its totient is φ = 118355807896752.

The previous prime is 120121212221999. The next prime is 120121212222041. The reversal of 120121212222001 is 100222212121021.

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

It is a cyclic number.

It is not a de Polignac number, because 120121212222001 - 2¹ = 120121212221999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120121212222001.

It is not an unprimeable number, because it can be changed into a prime (120121212222041) 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, 1939973761 + ... + 1940035678.

It is an arithmetic number, because the mean of its divisors is an integer number (15236797070880).

Almost surely, 2^{120121212222001} is an apocalyptic number.

It is an amenable number.

120121212222001 is a deficient number, since it is larger than the sum of its proper divisors (1773164345039).

120121212222001 is an equidigital number, since it uses as much as digits as its factorization.

120121212222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880009895.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 120121212222001 its reverse (100222212121021), we get a palindrome (220343424343022).

The spelling of 120121212222001 in words is "one hundred twenty trillion, one hundred twenty-one billion, two hundred twelve million, two hundred twenty-two thousand, one".