122201222220121 has 16 divisors (see below), whose sum is σ = 133498109288448. Its totient is φ = 110935634518800.

The previous prime is 122201222220073. The next prime is 122201222220139. The reversal of 122201222220121 is 121022222102221.

It is a cyclic number.

It is not a de Polignac number, because 122201222220121 - 2¹⁵ = 122201222187353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122201222220092 and 122201222220101.

It is not an unprimeable number, because it can be changed into a prime (122201622220121) 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, 133966786 + ... + 134875876.

It is an arithmetic number, because the mean of its divisors is an integer number (8343631830528).

Almost surely, 2^{122201222220121} is an apocalyptic number.

122201222220121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122201222220121 is a deficient number, since it is larger than the sum of its proper divisors (11296887068327).

122201222220121 is a wasteful number, since it uses less digits than its factorization.

122201222220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926292.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 122201222220121 its reverse (121022222102221), we get a palindrome (243223444322342).

The spelling of 122201222220121 in words is "one hundred twenty-two trillion, two hundred one billion, two hundred twenty-two million, two hundred twenty thousand, one hundred twenty-one".