20101210102 has 4 divisors (see below), whose sum is σ = 30151815156. Its totient is φ = 10050605050.

The previous prime is 20101210099. The next prime is 20101210121.

20101210102 is nontrivially palindromic in base 10.

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

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, 5025302524 + ... + 5025302527.

It is an arithmetic number, because the mean of its divisors is an integer number (7537953789).

Almost surely, 2^20101210102 is an apocalyptic number.

20101210102 is a deficient number, since it is larger than the sum of its proper divisors (10050605054).

20101210102 is a wasteful number, since it uses less digits than its factorization.

20101210102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10050605053.

The product of its (nonzero) digits is 8, while the sum is 10.

The spelling of 20101210102 in words is "twenty billion, one hundred one million, two hundred ten thousand, one hundred two".