12122111011020 has 24 divisors (see below), whose sum is σ = 33941910831024. Its totient is φ = 3232562936256.

The previous prime is 12122111010959. The next prime is 12122111011061. The reversal of 12122111011020 is 2011011122121.

It is a happy number.

It is a super-2 number, since 2×12122111011020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 101017591699 + ... + 101017591818.

It is an arithmetic number, because the mean of its divisors is an integer number (1414246284626).

Almost surely, 2^{12122111011020} is an apocalyptic number.

12122111011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122111011020 is an abundant number, since it is smaller than the sum of its proper divisors (21819799820004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12122111011020 is a wasteful number, since it uses less digits than its factorization.

12122111011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202035183529 (or 202035183527 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12122111011020 its reverse (2011011122121), we get a palindrome (14133122133141).

The spelling of 12122111011020 in words is "twelve trillion, one hundred twenty-two billion, one hundred eleven million, eleven thousand, twenty".