20012122101 has 8 divisors (see below), whose sum is σ = 28252407744. Its totient is φ = 12556625600.

The previous prime is 20012122073. The next prime is 20012122103. The reversal of 20012122101 is 10122121002.

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 20012122101 - 2¹⁴ = 20012105717 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012122103) 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, 196197225 + ... + 196197326.

It is an arithmetic number, because the mean of its divisors is an integer number (3531550968).

Almost surely, 2^20012122101 is an apocalyptic number.

It is an amenable number.

20012122101 is a deficient number, since it is larger than the sum of its proper divisors (8240285643).

20012122101 is a wasteful number, since it uses less digits than its factorization.

20012122101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392394571.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20012122101 its reverse (10122121002), we get a palindrome (30134243103).

It can be divided in two parts, 200121 and 22101, that added together give a palindrome (222222).

The spelling of 20012122101 in words is "twenty billion, twelve million, one hundred twenty-two thousand, one hundred one".