2010120111221 has 4 divisors (see below), whose sum is σ = 2010169977312. Its totient is φ = 2010070245132.

The previous prime is 2010120111173. The next prime is 2010120111257. The reversal of 2010120111221 is 1221110210102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2010120111221 - 2¹⁰ = 2010120110197 is a prime.

It is a super-2 number, since 2×2010120111221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2010120111196 and 2010120111205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010420111221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24872531 + ... + 24953216.

It is an arithmetic number, because the mean of its divisors is an integer number (502542494328).

Almost surely, 2^{2010120111221} is an apocalyptic number.

It is an amenable number.

2010120111221 is a deficient number, since it is larger than the sum of its proper divisors (49866091).

2010120111221 is an equidigital number, since it uses as much as digits as its factorization.

2010120111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49866090.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2010120111221 its reverse (1221110210102), we get a palindrome (3231230321323).

The spelling of 2010120111221 in words is "two trillion, ten billion, one hundred twenty million, one hundred eleven thousand, two hundred twenty-one".