122120221121210 has 32 divisors (see below), whose sum is σ = 239069167101072. Its totient is φ = 44644102156800.

The previous prime is 122120221121201. The next prime is 122120221121221. The reversal of 122120221121210 is 12121122021221.

It can be written as a sum of positive squares in 8 ways, for example, as 77048561508361 + 45071659612849 = 8777731^2 + 6713543^2 .

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, 4650414179 + ... + 4650440438.

Almost surely, 2^{122120221121210} is an apocalyptic number.

122120221121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122120221121210 is a deficient number, since it is larger than the sum of its proper divisors (116948945979862).

122120221121210 is a wasteful number, since it uses less digits than its factorization.

122120221121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9300854738.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 122120221121210 its reverse (12121122021221), we get a palindrome (134241343142431).

The spelling of 122120221121210 in words is "one hundred twenty-two trillion, one hundred twenty billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred ten".