20100212001121 has 8 divisors (see below), whose sum is σ = 22987701345024. Its totient is φ = 17216730278880.

The previous prime is 20100212001113. The next prime is 20100212001193. The reversal of 20100212001121 is 12110021200102.

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 20100212001121 - 2³ = 20100212001113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20100212001521) 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, 1001894665 + ... + 1001914726.

It is an arithmetic number, because the mean of its divisors is an integer number (2873462668128).

Almost surely, 2^{20100212001121} is an apocalyptic number.

It is an amenable number.

20100212001121 is a deficient number, since it is larger than the sum of its proper divisors (2887489343903).

20100212001121 is a wasteful number, since it uses less digits than its factorization.

20100212001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003810831.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20100212001121 its reverse (12110021200102), we get a palindrome (32210233201223).

The spelling of 20100212001121 in words is "twenty trillion, one hundred billion, two hundred twelve million, one thousand, one hundred twenty-one".