2122111011021 has 8 divisors (see below), whose sum is σ = 2846424350784. Its totient is φ = 1406269172640.

The previous prime is 2122111011019. The next prime is 2122111011037. The reversal of 2122111011021 is 1201101112212.

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 2122111011021 - 2¹ = 2122111011019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122111018021) 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, 2117874760 + ... + 2117875761.

It is an arithmetic number, because the mean of its divisors is an integer number (355803043848).

Almost surely, 2^{2122111011021} is an apocalyptic number.

It is an amenable number.

2122111011021 is a deficient number, since it is larger than the sum of its proper divisors (724313339763).

2122111011021 is a wasteful number, since it uses less digits than its factorization.

2122111011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4235750691.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2122111011021 its reverse (1201101112212), we get a palindrome (3323212123233).

The spelling of 2122111011021 in words is "two trillion, one hundred twenty-two billion, one hundred eleven million, eleven thousand, twenty-one".