2221133220121 has 8 divisors (see below), whose sum is σ = 2243299532544. Its totient is φ = 2198970337200.

The previous prime is 2221133220101. The next prime is 2221133220143. The reversal of 2221133220121 is 1210223311222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221133220121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221133220092 and 2221133220101.

It is not an unprimeable number, because it can be changed into a prime (2221133220101) 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, 454360 + ... + 2156086.

It is an arithmetic number, because the mean of its divisors is an integer number (280412441568).

Almost surely, 2^{2221133220121} is an apocalyptic number.

It is an amenable number.

2221133220121 is a deficient number, since it is larger than the sum of its proper divisors (22166312423).

2221133220121 is a wasteful number, since it uses less digits than its factorization.

2221133220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714751.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2221133220121 its reverse (1210223311222), we get a palindrome (3431356531343).

The spelling of 2221133220121 in words is "two trillion, two hundred twenty-one billion, one hundred thirty-three million, two hundred twenty thousand, one hundred twenty-one".