20101210106 has 8 divisors (see below), whose sum is σ = 30227007924. Its totient is φ = 10025540800.

The previous prime is 20101210099. The next prime is 20101210121. The reversal of 20101210106 is 60101210102.

It can be written as a sum of positive squares in 2 ways, for example, as 16193835025 + 3907375081 = 127255^2 + 62509^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12531125 + ... + 12532728.

Almost surely, 2^20101210106 is an apocalyptic number.

20101210106 is a deficient number, since it is larger than the sum of its proper divisors (10125797818).

20101210106 is a wasteful number, since it uses less digits than its factorization.

20101210106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25064256.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 20101210106 its reverse (60101210102), we get a palindrome (80202420208).

The spelling of 20101210106 in words is "twenty billion, one hundred one million, two hundred ten thousand, one hundred six".