2010001011221 has 8 divisors (see below), whose sum is σ = 2297329052544. Its totient is φ = 1722719229840.

The previous prime is 2010001011181. The next prime is 2010001011241. The reversal of 2010001011221 is 1221101000102.

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

It is a de Polignac number, because none of the positive numbers 2^k-2010001011221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010001011241) 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, 11471825 + ... + 11645718.

It is an arithmetic number, because the mean of its divisors is an integer number (287166131568).

Almost surely, 2^{2010001011221} is an apocalyptic number.

It is an amenable number.

2010001011221 is a deficient number, since it is larger than the sum of its proper divisors (287328041323).

2010001011221 is a wasteful number, since it uses less digits than its factorization.

2010001011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23129971.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2010001011221 its reverse (1221101000102), we get a palindrome (3231102011323).

The spelling of 2010001011221 in words is "two trillion, ten billion, one million, eleven thousand, two hundred twenty-one".