122012210 has 16 divisors (see below), whose sum is σ = 219787992. Its totient is φ = 48768000.

The previous prime is 122012197. The next prime is 122012257. The reversal of 122012210 is 12210221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 120143521 + 1868689 = 10961^2 + 1367^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122012191 and 122012200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12200 + ... + 19820.

Almost surely, 2^122012210 is an apocalyptic number.

122012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122012210 is a deficient number, since it is larger than the sum of its proper divisors (97775782).

122012210 is a wasteful number, since it uses less digits than its factorization.

122012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9229.

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

The square root of 122012210 is about 11045.9137240882. The cubic root of 122012210 is about 495.9841116355.

Adding to 122012210 its reverse (12210221), we get a palindrome (134222431).

The spelling of 122012210 in words is "one hundred twenty-two million, twelve thousand, two hundred ten".