20010212101 has 8 divisors (see below), whose sum is σ = 21838519008. Its totient is φ = 18183438000.

The previous prime is 20010212093. The next prime is 20010212147. The reversal of 20010212101 is 10121201002.

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 20010212101 - 2³ = 20010212093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010212701) 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, 355815 + ... + 408196.

It is an arithmetic number, because the mean of its divisors is an integer number (2729814876).

Almost surely, 2^20010212101 is an apocalyptic number.

It is an amenable number.

20010212101 is a deficient number, since it is larger than the sum of its proper divisors (1828306907).

20010212101 is a wasteful number, since it uses less digits than its factorization.

20010212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766403.

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

Adding to 20010212101 its reverse (10121201002), we get a palindrome (30131413103).

The spelling of 20010212101 in words is "twenty billion, ten million, two hundred twelve thousand, one hundred one".