122220212012121 has 8 divisors (see below), whose sum is σ = 162999769077504. Its totient is φ = 81460398144080.

The previous prime is 122220212012069. The next prime is 122220212012123. The reversal of 122220212012121 is 121210212022221.

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 122220212012121 - 2¹¹ = 122220212010073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122220212012123) 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, 4935784890 + ... + 4935809651.

It is an arithmetic number, because the mean of its divisors is an integer number (20374971134688).

Almost surely, 2^{122220212012121} is an apocalyptic number.

It is an amenable number.

122220212012121 is a deficient number, since it is larger than the sum of its proper divisors (40779557065383).

122220212012121 is an equidigital number, since it uses as much as digits as its factorization.

122220212012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9871598671.

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

Adding to 122220212012121 its reverse (121210212022221), we get a palindrome (243430424034342).

The spelling of 122220212012121 in words is "one hundred twenty-two trillion, two hundred twenty billion, two hundred twelve million, twelve thousand, one hundred twenty-one".