2102222002 has 4 divisors (see below), whose sum is σ = 3153333006. Its totient is φ = 1051111000.

The previous prime is 2102221991. The next prime is 2102222021. The reversal of 2102222002 is 2002222012.

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., 1382426761 + 719795241 = 37181^2 + 26829^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525555499 + ... + 525555502.

Almost surely, 2^2102222002 is an apocalyptic number.

2102222002 is a deficient number, since it is larger than the sum of its proper divisors (1051111004).

2102222002 is a wasteful number, since it uses less digits than its factorization.

2102222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051111003.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2102222002 is about 45849.9945692472. The cubic root of 2102222002 is about 1281.0306644270.

Adding to 2102222002 its reverse (2002222012), we get a palindrome (4104444014).

The spelling of 2102222002 in words is "two billion, one hundred two million, two hundred twenty-two thousand, two".