1000021122021 has 8 divisors (see below), whose sum is σ = 1358519260320. Its totient is φ = 654101865872.

The previous prime is 1000021121963. The next prime is 1000021122029. The reversal of 1000021122021 is 1202211200001.

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 1000021122021 - 2⁹ = 1000021121509 is a prime.

It is a super-2 number, since 2×1000021122021² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1000021121988 and 1000021122006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000021122029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3144720351 + ... + 3144720668.

It is an arithmetic number, because the mean of its divisors is an integer number (169814907540).

Almost surely, 2^{1000021122021} is an apocalyptic number.

It is an amenable number.

1000021122021 is a deficient number, since it is larger than the sum of its proper divisors (358498138299).

1000021122021 is an equidigital number, since it uses as much as digits as its factorization.

1000021122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6289441075.

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

Adding to 1000021122021 its reverse (1202211200001), we get a palindrome (2202232322022).

The spelling of 1000021122021 in words is "one trillion, twenty-one million, one hundred twenty-two thousand, twenty-one".