2102022111221 has 8 divisors (see below), whose sum is σ = 2153943792000. Its totient is φ = 2050131518560.

The previous prime is 2102022111181. The next prime is 2102022111269. The reversal of 2102022111221 is 1221112202012.

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 2102022111221 - 2⁶ = 2102022111157 is a prime.

It is a super-3 number, since 3×2102022111221³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2102022111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102052111221) 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, 7635101 + ... + 7905618.

It is an arithmetic number, because the mean of its divisors is an integer number (269242974000).

Almost surely, 2^{2102022111221} is an apocalyptic number.

It is an amenable number.

2102022111221 is a deficient number, since it is larger than the sum of its proper divisors (51921680779).

2102022111221 is a wasteful number, since it uses less digits than its factorization.

2102022111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15544059.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2102022111221 its reverse (1221112202012), we get a palindrome (3323134313233).

The spelling of 2102022111221 in words is "two trillion, one hundred two billion, twenty-two million, one hundred eleven thousand, two hundred twenty-one".