20120122210 has 16 divisors (see below), whose sum is σ = 36218083392. Its totient is φ = 8047634800.

The previous prime is 20120122207. The next prime is 20120122223. The reversal of 20120122210 is 1222102102.

It is a happy number.

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, 220515 + ... + 298105.

It is an arithmetic number, because the mean of its divisors is an integer number (2263630212).

Almost surely, 2^20120122210 is an apocalyptic number.

20120122210 is a deficient number, since it is larger than the sum of its proper divisors (16097961182).

20120122210 is a wasteful number, since it uses less digits than its factorization.

20120122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103529.

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

Adding to 20120122210 its reverse (1222102102), we get a palindrome (21342224312).

The spelling of 20120122210 in words is "twenty billion, one hundred twenty million, one hundred twenty-two thousand, two hundred ten".