20101202220202 has 4 divisors (see below), whose sum is σ = 30151803330306. Its totient is φ = 10050601110100.

The previous prime is 20101202220131. The next prime is 20101202220217. The reversal of 20101202220202 is 20202220210102.

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., 19530468810241 + 570733409961 = 4419329^2 + 755469^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5025300555049 + ... + 5025300555052.

Almost surely, 2^{20101202220202} is an apocalyptic number.

20101202220202 is a deficient number, since it is larger than the sum of its proper divisors (10050601110104).

20101202220202 is a wasteful number, since it uses less digits than its factorization.

20101202220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10050601110103.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20101202220202 its reverse (20202220210102), we get a palindrome (40303422430304).

The spelling of 20101202220202 in words is "twenty trillion, one hundred one billion, two hundred two million, two hundred twenty thousand, two hundred two".