2011201012221 has 8 divisors (see below), whose sum is σ = 2697101936160. Its totient is φ = 1333050381552.

The previous prime is 2011201012201. The next prime is 2011201012243. The reversal of 2011201012221 is 1222101021102.

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

It is not a de Polignac number, because 2011201012221 - 2²³ = 2011192623613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2011201012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011201012201) 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, 1937572711 + ... + 1937573748.

It is an arithmetic number, because the mean of its divisors is an integer number (337137742020).

Almost surely, 2^{2011201012221} is an apocalyptic number.

It is an amenable number.

2011201012221 is a deficient number, since it is larger than the sum of its proper divisors (685900923939).

2011201012221 is a wasteful number, since it uses less digits than its factorization.

2011201012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3875146635.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2011201012221 its reverse (1222101021102), we get a palindrome (3233302033323).

The spelling of 2011201012221 in words is "two trillion, eleven billion, two hundred one million, twelve thousand, two hundred twenty-one".