1012021002021 has 8 divisors (see below), whose sum is σ = 1362721349664. Its totient is φ = 668000661200.

The previous prime is 1012021002017. The next prime is 1012021002037. The reversal of 1012021002021 is 1202001202101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1012021002021 - 2² = 1012021002017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1012021001988 and 1012021002006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012029002021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1670001351 + ... + 1670001956.

It is an arithmetic number, because the mean of its divisors is an integer number (170340168708).

Almost surely, 2^{1012021002021} is an apocalyptic number.

It is an amenable number.

1012021002021 is a deficient number, since it is larger than the sum of its proper divisors (350700347643).

1012021002021 is a wasteful number, since it uses less digits than its factorization.

1012021002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340003411.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1012021002021 its reverse (1202001202101), we get a palindrome (2214022204122).

The spelling of 1012021002021 in words is "one trillion, twelve billion, twenty-one million, two thousand, twenty-one".