20010102120121 has 8 divisors (see below), whose sum is σ = 20014263942624. Its totient is φ = 20005940586720.

The previous prime is 20010102120109. The next prime is 20010102120137. The reversal of 20010102120121 is 12102120101002.

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 20010102120121 - 2⁷ = 20010102119993 is a prime.

It is a super-2 number, since 2×20010102120121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010102120191) 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, 185908506 + ... + 186016108.

It is an arithmetic number, because the mean of its divisors is an integer number (2501782992828).

Almost surely, 2^{20010102120121} is an apocalyptic number.

It is an amenable number.

20010102120121 is a deficient number, since it is larger than the sum of its proper divisors (4161822503).

20010102120121 is a wasteful number, since it uses less digits than its factorization.

20010102120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144551.

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

Adding to 20010102120121 its reverse (12102120101002), we get a palindrome (32112222221123).

The spelling of 20010102120121 in words is "twenty trillion, ten billion, one hundred two million, one hundred twenty thousand, one hundred twenty-one".