20101012202 has 4 divisors (see below), whose sum is σ = 30151518306. Its totient is φ = 10050506100.

The previous prime is 20101012111. The next prime is 20101012207. The reversal of 20101012202 is 20221010102.

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., 11246390401 + 8854621801 = 106049^2 + 94099^2 .

It is not an unprimeable number, because it can be changed into a prime (20101012207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5025253049 + ... + 5025253052.

Almost surely, 2^20101012202 is an apocalyptic number.

20101012202 is a deficient number, since it is larger than the sum of its proper divisors (10050506104).

20101012202 is a wasteful number, since it uses less digits than its factorization.

20101012202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10050506103.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20101012202 its reverse (20221010102), we get a palindrome (40322022304).

The spelling of 20101012202 in words is "twenty billion, one hundred one million, twelve thousand, two hundred two".