2120021021122 has 8 divisors (see below), whose sum is σ = 3196173824316. Its totient is φ = 1054629746352.

The previous prime is 2120021021081. The next prime is 2120021021171. The reversal of 2120021021122 is 2211201200212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1923106071121 + 196914950001 = 1386761^2 + 443751^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2120021021096 and 2120021021105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2690381613 + ... + 2690382400.

Almost surely, 2^{2120021021122} is an apocalyptic number.

2120021021122 is a deficient number, since it is larger than the sum of its proper divisors (1076152803194).

2120021021122 is a wasteful number, since it uses less digits than its factorization.

2120021021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5380764212.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2120021021122 its reverse (2211201200212), we get a palindrome (4331222221334).

The spelling of 2120021021122 in words is "two trillion, one hundred twenty billion, twenty-one million, twenty-one thousand, one hundred twenty-two".