2120021121122 has 4 divisors (see below), whose sum is σ = 3180031681686. Its totient is φ = 1060010560560.

The previous prime is 2120021121059. The next prime is 2120021121187. The reversal of 2120021121122 is 2211211200212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1902912650521 + 217108470601 = 1379461^2 + 465949^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2120021121122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530005280279 + ... + 530005280282.

Almost surely, 2^{2120021121122} is an apocalyptic number.

2120021121122 is a deficient number, since it is larger than the sum of its proper divisors (1060010560564).

2120021121122 is a wasteful number, since it uses less digits than its factorization.

2120021121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060010560563.

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

Adding to 2120021121122 its reverse (2211211200212), we get a palindrome (4331232321334).

The spelling of 2120021121122 in words is "two trillion, one hundred twenty billion, twenty-one million, one hundred twenty-one thousand, one hundred twenty-two".