122121210220201 has 16 divisors (see below), whose sum is σ = 126156200486400. Its totient is φ = 118092226728960.

The previous prime is 122121210220159. The next prime is 122121210220237. The reversal of 122121210220201 is 102022012121221.

It is a cyclic number.

It is not a de Polignac number, because 122121210220201 - 2⁷ = 122121210220073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122121210220271) 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, 231158250 + ... + 231685948.

It is an arithmetic number, because the mean of its divisors is an integer number (7884762530400).

Almost surely, 2^{122121210220201} is an apocalyptic number.

It is an amenable number.

122121210220201 is a deficient number, since it is larger than the sum of its proper divisors (4034990266199).

122121210220201 is a wasteful number, since it uses less digits than its factorization.

122121210220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533376.

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

Adding to 122121210220201 its reverse (102022012121221), we get a palindrome (224143222341422).

The spelling of 122121210220201 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, two hundred ten million, two hundred twenty thousand, two hundred one".