122001220111010 has 16 divisors (see below), whose sum is σ = 219602408410872. Its totient is φ = 48800440886400.

The previous prime is 122001220111009. The next prime is 122001220111037. The reversal of 122001220111010 is 10111022100221.

It can be written as a sum of positive squares in 4 ways, for example, as 113498788123561 + 8502431987449 = 10653581^2 + 2915893^2 .

It is a super-2 number, since 2×122001220111010² (a number of 29 digits) contains 22 as substring.

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, 6141200 + ... + 16784420.

Almost surely, 2^{122001220111010} is an apocalyptic number.

122001220111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122001220111010 is a deficient number, since it is larger than the sum of its proper divisors (97601188299862).

122001220111010 is a wasteful number, since it uses less digits than its factorization.

122001220111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11789509.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122001220111010 its reverse (10111022100221), we get a palindrome (132112242211231).

The spelling of 122001220111010 in words is "one hundred twenty-two trillion, one billion, two hundred twenty million, one hundred eleven thousand, ten".