1010212112021 has 4 divisors (see below), whose sum is σ = 1154528128032. Its totient is φ = 865896096012.

The previous prime is 1010212111999. The next prime is 1010212112029. The reversal of 1010212112021 is 1202112120101.

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 1010212112021 - 2³⁴ = 993032242837 is a prime.

It is a super-2 number, since 2×1010212112021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1010212111987 and 1010212112005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010212112029) 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, 72158007995 + ... + 72158008008.

It is an arithmetic number, because the mean of its divisors is an integer number (288632032008).

Almost surely, 2^{1010212112021} is an apocalyptic number.

It is an amenable number.

1010212112021 is a deficient number, since it is larger than the sum of its proper divisors (144316016011).

1010212112021 is an equidigital number, since it uses as much as digits as its factorization.

1010212112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144316016010.

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

Adding to 1010212112021 its reverse (1202112120101), we get a palindrome (2212324232122).

The spelling of 1010212112021 in words is "one trillion, ten billion, two hundred twelve million, one hundred twelve thousand, twenty-one".