2221101012121 has 8 divisors (see below), whose sum is σ = 2401791333120. Its totient is φ = 2045970393408.

The previous prime is 2221101012113. The next prime is 2221101012131. The reversal of 2221101012121 is 1212101011222.

2221101012121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2221101012121 - 2³ = 2221101012113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221101012095 and 2221101012104.

It is not an unprimeable number, because it can be changed into a prime (2221101012101) 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, 1389924741 + ... + 1389926338.

It is an arithmetic number, because the mean of its divisors is an integer number (300223916640).

Almost surely, 2^{2221101012121} is an apocalyptic number.

It is an amenable number.

2221101012121 is a deficient number, since it is larger than the sum of its proper divisors (180690320999).

2221101012121 is a wasteful number, since it uses less digits than its factorization.

2221101012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779851143.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2221101012121 its reverse (1212101011222), we get a palindrome (3433202023343).

The spelling of 2221101012121 in words is "two trillion, two hundred twenty-one billion, one hundred one million, twelve thousand, one hundred twenty-one".