122020000121121 has 16 divisors (see below), whose sum is σ = 168156759988224. Its totient is φ = 78656659046864.

The previous prime is 122020000121083. The next prime is 122020000121147. The reversal of 122020000121121 is 121121000020221.

It is a cyclic number.

It is not a de Polignac number, because 122020000121121 - 2¹⁵ = 122020000088353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122020000121121.

It is not an unprimeable number, because it can be changed into a prime (122020000121021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5213181501 + ... + 5213204906.

It is an arithmetic number, because the mean of its divisors is an integer number (10509797499264).

Almost surely, 2^{122020000121121} is an apocalyptic number.

It is an amenable number.

122020000121121 is a deficient number, since it is larger than the sum of its proper divisors (46136759867103).

122020000121121 is a wasteful number, since it uses less digits than its factorization.

122020000121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10426386540.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122020000121121 its reverse (121121000020221), we get a palindrome (243141000141342).

The spelling of 122020000121121 in words is "one hundred twenty-two trillion, twenty billion, one hundred twenty-one thousand, one hundred twenty-one".