20101210010101 has 8 divisors (see below), whose sum is σ = 22022706873024. Its totient is φ = 18195398836320.

The previous prime is 20101210010087. The next prime is 20101210010107. The reversal of 20101210010101 is 10101001210102.

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

It is a cyclic number.

It is not a de Polignac number, because 20101210010101 - 2¹³ = 20101210001909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101210010107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3921419601 + ... + 3921424726.

It is an arithmetic number, because the mean of its divisors is an integer number (2752838359128).

Almost surely, 2^{20101210010101} is an apocalyptic number.

It is an amenable number.

20101210010101 is a deficient number, since it is larger than the sum of its proper divisors (1921496862923).

20101210010101 is a wasteful number, since it uses less digits than its factorization.

20101210010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7842844571.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20101210010101 its reverse (10101001210102), we get a palindrome (30202211220203).

The spelling of 20101210010101 in words is "twenty trillion, one hundred one billion, two hundred ten million, ten thousand, one hundred one".