122020210 has 16 divisors (see below), whose sum is σ = 236531736. Its totient is φ = 45053568.

The previous prime is 122020193. The next prime is 122020211. The reversal of 122020210 is 12020221.

It can be written as a sum of positive squares in 4 ways, for example, as 46799281 + 75220929 = 6841^2 + 8673^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (122020211) 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, 469179 + ... + 469438.

Almost surely, 2^122020210 is an apocalyptic number.

122020210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122020210 is a deficient number, since it is larger than the sum of its proper divisors (114511526).

122020210 is a wasteful number, since it uses less digits than its factorization.

122020210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938637.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 122020210 is about 11046.2758430161. The cubic root of 122020210 is about 495.9949514965.

Adding to 122020210 its reverse (12020221), we get a palindrome (134040431).

The spelling of 122020210 in words is "one hundred twenty-two million, twenty thousand, two hundred ten".