1012122012121 has 24 divisors (see below), whose sum is σ = 1116510228864. Its totient is φ = 909909000000.

The previous prime is 1012122012119. The next prime is 1012122012127. The reversal of 1012122012121 is 1212102212101.

It is not a de Polignac number, because 1012122012121 - 2¹ = 1012122012119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012122012095 and 1012122012104.

It is not an unprimeable number, because it can be changed into a prime (1012122012127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102219271 + ... + 102229171.

It is an arithmetic number, because the mean of its divisors is an integer number (46521259536).

Almost surely, 2^{1012122012121} is an apocalyptic number.

1012122012121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1012122012121 is a deficient number, since it is larger than the sum of its proper divisors (104388216743).

1012122012121 is an equidigital number, since it uses as much as digits as its factorization.

1012122012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11025 (or 10924 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1012122012121 its reverse (1212102212101), we get a palindrome (2224224224222).

The spelling of 1012122012121 in words is "one trillion, twelve billion, one hundred twenty-two million, twelve thousand, one hundred twenty-one".