1010112122021 has 4 divisors (see below), whose sum is σ = 1012169377344. Its totient is φ = 1008054866700.

The previous prime is 1010112122003. The next prime is 1010112122039. The reversal of 1010112122021 is 1202212110101.

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 an interprime number because it is at equal distance from previous prime (1010112122003) and next prime (1010112122039).

It is a cyclic number.

It is not a de Polignac number, because 1010112122021 - 2⁶ = 1010112121957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010112121987 and 1010112122005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010112172021) 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, 1028626925 + ... + 1028627906.

It is an arithmetic number, because the mean of its divisors is an integer number (253042344336).

Almost surely, 2^{1010112122021} is an apocalyptic number.

It is an amenable number.

1010112122021 is a deficient number, since it is larger than the sum of its proper divisors (2057255323).

1010112122021 is an equidigital number, since it uses as much as digits as its factorization.

1010112122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057255322.

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

Adding to 1010112122021 its reverse (1202212110101), we get a palindrome (2212324232122).

The spelling of 1010112122021 in words is "one trillion, ten billion, one hundred twelve million, one hundred twenty-two thousand, twenty-one".