20101002202 has 4 divisors (see below), whose sum is σ = 30151503306. Its totient is φ = 10050501100.

The previous prime is 20101002169. The next prime is 20101002209. The reversal of 20101002202 is 20220010102.

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., 20090511081 + 10491121 = 141741^2 + 3239^2 .

It is not an unprimeable number, because it can be changed into a prime (20101002209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5025250549 + ... + 5025250552.

Almost surely, 2^20101002202 is an apocalyptic number.

20101002202 is a deficient number, since it is larger than the sum of its proper divisors (10050501104).

20101002202 is a wasteful number, since it uses less digits than its factorization.

20101002202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10050501103.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20101002202 its reverse (20220010102), we get a palindrome (40321012304).

The spelling of 20101002202 in words is "twenty billion, one hundred one million, two thousand, two hundred two".