2221101002121 has 8 divisors (see below), whose sum is σ = 2964718794624. Its totient is φ = 1479108605520.

The previous prime is 2221101002119. The next prime is 2221101002129. The reversal of 2221101002121 is 1212001011222.

2221101002121 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 not a de Polignac number, because 2221101002121 - 2¹ = 2221101002119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2221101002121.

It is not an unprimeable number, because it can be changed into a prime (2221101002129) 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, 406345786 + ... + 406351251.

It is an arithmetic number, because the mean of its divisors is an integer number (370589849328).

Almost surely, 2^{2221101002121} is an apocalyptic number.

It is an amenable number.

2221101002121 is a deficient number, since it is larger than the sum of its proper divisors (743617792503).

2221101002121 is an equidigital number, since it uses as much as digits as its factorization.

2221101002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812697951.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2221101002121 its reverse (1212001011222), we get a palindrome (3433102013343).

The spelling of 2221101002121 in words is "two trillion, two hundred twenty-one billion, one hundred one million, two thousand, one hundred twenty-one".