2010111221620 has 12 divisors (see below), whose sum is σ = 4221233565444. Its totient is φ = 804044488640.

The previous prime is 2010111221611. The next prime is 2010111221621. The reversal of 2010111221620 is 261221110102.

It can be written as a sum of positive squares in 2 ways, for example, as 590948887824 + 1419162333796 = 768732^2 + 1191286^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010111221621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50252780521 + ... + 50252780560.

It is an arithmetic number, because the mean of its divisors is an integer number (351769463787).

Almost surely, 2^{2010111221620} is an apocalyptic number.

2010111221620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2010111221620 is an abundant number, since it is smaller than the sum of its proper divisors (2211122343824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2010111221620 is a wasteful number, since it uses less digits than its factorization.

2010111221620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100505561090 (or 100505561088 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 2010111221620 its reverse (261221110102), we get a palindrome (2271332331722).

The spelling of 2010111221620 in words is "two trillion, ten billion, one hundred eleven million, two hundred twenty-one thousand, six hundred twenty".