121201212210122 has 16 divisors (see below), whose sum is σ = 199424998098144. Its totient is φ = 54787087386000.

The previous prime is 121201212210103. The next prime is 121201212210173. The reversal of 121201212210122 is 221012212102121.

It is a junction number, because it is equal to n+sod(n) for n = 121201212210094 and 121201212210103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15218631404 + ... + 15218639367.

It is an arithmetic number, because the mean of its divisors is an integer number (12464062381134).

Almost surely, 2^{121201212210122} is an apocalyptic number.

121201212210122 is a deficient number, since it is larger than the sum of its proper divisors (78223785888022).

121201212210122 is a wasteful number, since it uses less digits than its factorization.

121201212210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30437270965.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121201212210122 its reverse (221012212102121), we get a palindrome (342213424312243).

The spelling of 121201212210122 in words is "one hundred twenty-one trillion, two hundred one billion, two hundred twelve million, two hundred ten thousand, one hundred twenty-two".