122021210 has 16 divisors (see below), whose sum is σ = 229188096. Its totient is φ = 46686288.

The previous prime is 122021201. The next prime is 122021213. The reversal of 122021210 is 12120221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122021191 and 122021200.

It is not an unprimeable number, because it can be changed into a prime (122021213) 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, 265034 + ... + 265493.

It is an arithmetic number, because the mean of its divisors is an integer number (14324256).

Almost surely, 2^122021210 is an apocalyptic number.

122021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122021210 is a deficient number, since it is larger than the sum of its proper divisors (107166886).

122021210 is a wasteful number, since it uses less digits than its factorization.

122021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530557.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 122021210 is about 11046.3211070474. The cubic root of 122021210 is about 495.9963064458.

Adding to 122021210 its reverse (12120221), we get a palindrome (134141431).

The spelling of 122021210 in words is "one hundred twenty-two million, twenty-one thousand, two hundred ten".