20100120202202 has 4 divisors (see below), whose sum is σ = 30150180303306. Its totient is φ = 10050060101100.

The previous prime is 20100120202093. The next prime is 20100120202213. The reversal of 20100120202202 is 20220202100102.

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., 10561726514161 + 9538393688041 = 3249881^2 + 3088429^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5025030050549 + ... + 5025030050552.

Almost surely, 2^{20100120202202} is an apocalyptic number.

20100120202202 is a deficient number, since it is larger than the sum of its proper divisors (10050060101104).

20100120202202 is a wasteful number, since it uses less digits than its factorization.

20100120202202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10050060101103.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20100120202202 its reverse (20220202100102), we get a palindrome (40320322302304).

The spelling of 20100120202202 in words is "twenty trillion, one hundred billion, one hundred twenty million, two hundred two thousand, two hundred two".