20201210102 has 4 divisors (see below), whose sum is σ = 30301815156. Its totient is φ = 10100605050.

The previous prime is 20201210093. The next prime is 20201210111. The reversal of 20201210102 is 20101210202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20201210093) and next prime (20201210111).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050302524 + ... + 5050302527.

It is an arithmetic number, because the mean of its divisors is an integer number (7575453789).

Almost surely, 2^20201210102 is an apocalyptic number.

20201210102 is a deficient number, since it is larger than the sum of its proper divisors (10100605054).

20201210102 is a wasteful number, since it uses less digits than its factorization.

20201210102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100605053.

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

Adding to 20201210102 its reverse (20101210202), we get a palindrome (40302420304).

The spelling of 20201210102 in words is "twenty billion, two hundred one million, two hundred ten thousand, one hundred two".