1021000222201 has 8 divisors (see below), whose sum is σ = 1054439631360. Its totient is φ = 988048979808.

The previous prime is 1021000222169. The next prime is 1021000222213. The reversal of 1021000222201 is 1022220001201.

It is a happy number.

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 1021000222201 - 2⁵ = 1021000222169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021000222301) 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, 122037441 + ... + 122045806.

It is an arithmetic number, because the mean of its divisors is an integer number (131804953920).

Almost surely, 2^{1021000222201} is an apocalyptic number.

It is an amenable number.

1021000222201 is a deficient number, since it is larger than the sum of its proper divisors (33439409159).

1021000222201 is an equidigital number, since it uses as much as digits as its factorization.

1021000222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244083383.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1021000222201 its reverse (1022220001201), we get a palindrome (2043220223402).

The spelling of 1021000222201 in words is "one trillion, twenty-one billion, two hundred twenty-two thousand, two hundred one".