122212222210 has 32 divisors (see below), whose sum is σ = 237329153712. Its totient is φ = 45043472640.

The previous prime is 122212222201. The next prime is 122212222243. The reversal of 122212222210 is 12222212221.

It can be written as a sum of positive squares in 8 ways, for example, as 2857864681 + 119354357529 = 53459^2 + 345477^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 771481 + ... + 916300.

Almost surely, 2^122212222210 is an apocalyptic number.

122212222210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122212222210 is a deficient number, since it is larger than the sum of its proper divisors (115116931502).

122212222210 is a wasteful number, since it uses less digits than its factorization.

122212222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688358.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 122212222210 its reverse (12222212221), we get a palindrome (134434434431).

The spelling of 122212222210 in words is "one hundred twenty-two billion, two hundred twelve million, two hundred twenty-two thousand, two hundred ten".