122011111010 has 48 divisors (see below), whose sum is σ = 227802782376. Its totient is φ = 47049332736.

The previous prime is 122011110989. The next prime is 122011111051. The reversal of 122011111010 is 10111110221.

It can be written as a sum of positive squares in 12 ways, for example, as 75359761 + 121935751249 = 8681^2 + 349193^2 .

It is a super-2 number, since 2×122011111010² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122011110982 and 122011111000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5649152 + ... + 5670708.

Almost surely, 2^122011111010 is an apocalyptic number.

122011111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122011111010 is a deficient number, since it is larger than the sum of its proper divisors (105791671366).

122011111010 is a wasteful number, since it uses less digits than its factorization.

122011111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22295 (or 22266 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 122011111010 its reverse (10111110221), we get a palindrome (132122221231).

It can be divided in two parts, 12201 and 1111010, that added together give a palindrome (1123211).

The spelling of 122011111010 in words is "one hundred twenty-two billion, eleven million, one hundred eleven thousand, ten".