122121201 has 16 divisors (see below), whose sum is σ = 167551424. Its totient is φ = 79061184.

The previous prime is 122121199. The next prime is 122121203. The reversal of 122121201 is 102121221.

It is an interprime number because it is at equal distance from previous prime (122121199) and next prime (122121203).

It is not a de Polignac number, because 122121201 - 2¹ = 122121199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122121203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100071 + ... + 101283.

It is an arithmetic number, because the mean of its divisors is an integer number (10471964).

Almost surely, 2^122121201 is an apocalyptic number.

It is an amenable number.

122121201 is a deficient number, since it is larger than the sum of its proper divisors (45430223).

122121201 is a wasteful number, since it uses less digits than its factorization.

122121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 122121201 is about 11050.8461666969. The cubic root of 122121201 is about 496.1317518213.

Adding to 122121201 its reverse (102121221), we get a palindrome (224242422).

It can be divided in two parts, 1221 and 21201, that added together give a palindrome (22422).

The spelling of 122121201 in words is "one hundred twenty-two million, one hundred twenty-one thousand, two hundred one".