2010221200091 has 8 divisors (see below), whose sum is σ = 2164874486544. Its totient is φ = 1855570897440.

The previous prime is 2010221200087. The next prime is 2010221200109. The reversal of 2010221200091 is 1900021220102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2010221200091 - 2² = 2010221200087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2010221202091) 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, 766961 + ... + 2146781.

It is an arithmetic number, because the mean of its divisors is an integer number (270609310818).

Almost surely, 2^{2010221200091} is an apocalyptic number.

2010221200091 is a deficient number, since it is larger than the sum of its proper divisors (154653286453).

2010221200091 is a wasteful number, since it uses less digits than its factorization.

2010221200091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491901.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 2010221200091 its reverse (1900021220102), we get a palindrome (3910242420193).

The spelling of 2010221200091 in words is "two trillion, ten billion, two hundred twenty-one million, two hundred thousand, ninety-one".