2222001121021 has 8 divisors (see below), whose sum is σ = 2436182136000. Its totient is φ = 2009850258240.

The previous prime is 2222001120967. The next prime is 2222001121073. The reversal of 2222001121021 is 1201211002222.

It is a happy number.

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

It is not a de Polignac number, because 2222001121021 - 2²¹ = 2221999023869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2222001120986 and 2222001121004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222001128021) 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, 507535756 + ... + 507540133.

It is an arithmetic number, because the mean of its divisors is an integer number (304522767000).

Almost surely, 2^{2222001121021} is an apocalyptic number.

It is an amenable number.

2222001121021 is a deficient number, since it is larger than the sum of its proper divisors (214181014979).

2222001121021 is a wasteful number, since it uses less digits than its factorization.

2222001121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015076099.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2222001121021 its reverse (1201211002222), we get a palindrome (3423212123243).

The spelling of 2222001121021 in words is "two trillion, two hundred twenty-two billion, one million, one hundred twenty-one thousand, twenty-one".