121222012112201 has 64 divisors (see below), whose sum is σ = 167344624484352. Its totient is φ = 84752101440000.

The previous prime is 121222012112171. The next prime is 121222012112209. The reversal of 121222012112201 is 102211210222121.

It is a cyclic number.

It is not a de Polignac number, because 121222012112201 - 2²⁶ = 121221945003337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121222012112209) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5672516 + ... + 16571706.

It is an arithmetic number, because the mean of its divisors is an integer number (2614759757568).

Almost surely, 2^{121222012112201} is an apocalyptic number.

121222012112201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121222012112201 is a deficient number, since it is larger than the sum of its proper divisors (46122612372151).

121222012112201 is a wasteful number, since it uses less digits than its factorization.

121222012112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10899534.

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

Adding to 121222012112201 its reverse (102211210222121), we get a palindrome (223433222334322).

The spelling of 121222012112201 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, twelve million, one hundred twelve thousand, two hundred one".