1012022011121 has 4 divisors (see below), whose sum is σ = 1104024012144. Its totient is φ = 920020010100.

The previous prime is 1012022011103. The next prime is 1012022011171. The reversal of 1012022011121 is 1211102202101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1012022011121 - 2³⁰ = 1010948269297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012022011096 and 1012022011105.

It is not an unprimeable number, because it can be changed into a prime (1012022011171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46001000495 + ... + 46001000516.

It is an arithmetic number, because the mean of its divisors is an integer number (276006003036).

Almost surely, 2^{1012022011121} is an apocalyptic number.

1012022011121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1012022011121 is a deficient number, since it is larger than the sum of its proper divisors (92002001023).

1012022011121 is an equidigital number, since it uses as much as digits as its factorization.

1012022011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92002001022.

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

Adding to 1012022011121 its reverse (1211102202101), we get a palindrome (2223124213222).

The spelling of 1012022011121 in words is "one trillion, twelve billion, twenty-two million, eleven thousand, one hundred twenty-one".