2102021122 has 4 divisors (see below), whose sum is σ = 3153031686. Its totient is φ = 1051010560.

The previous prime is 2102021111. The next prime is 2102021147. The reversal of 2102021122 is 2211202012.

It is a happy number.

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., 1279421361 + 822599761 = 35769^2 + 28681^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525505279 + ... + 525505282.

Almost surely, 2^2102021122 is an apocalyptic number.

2102021122 is a deficient number, since it is larger than the sum of its proper divisors (1051010564).

2102021122 is a wasteful number, since it uses less digits than its factorization.

2102021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051010563.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2102021122 is about 45847.8038950613. The cubic root of 2102021122 is about 1280.9898597234.

Adding to 2102021122 its reverse (2211202012), we get a palindrome (4313223134).

The spelling of 2102021122 in words is "two billion, one hundred two million, twenty-one thousand, one hundred twenty-two".