122012221 has 8 divisors (see below), whose sum is σ = 123285888. Its totient is φ = 120744000.

The previous prime is 122012197. The next prime is 122012257. The reversal of 122012221 is 122210221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122012221 - 2¹⁵ = 121979453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122012291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55381 + ... + 57541.

It is an arithmetic number, because the mean of its divisors is an integer number (15410736).

Almost surely, 2^122012221 is an apocalyptic number.

It is an amenable number.

122012221 is a deficient number, since it is larger than the sum of its proper divisors (1273667).

122012221 is a wasteful number, since it uses less digits than its factorization.

122012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 122012221 is about 11045.9142220099. The cubic root of 122012221 is about 495.9841265407.

Adding to 122012221 its reverse (122210221), we get a palindrome (244222442).

The spelling of 122012221 in words is "one hundred twenty-two million, twelve thousand, two hundred twenty-one".