2211212231101 has 4 divisors (see below), whose sum is σ = 2224453023072. Its totient is φ = 2197971439132.

The previous prime is 2211212231027. The next prime is 2211212231149. The reversal of 2211212231101 is 1011322121122.

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 2211212231101 - 2¹³ = 2211212222909 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 (2211212211101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6620395735 + ... + 6620396068.

It is an arithmetic number, because the mean of its divisors is an integer number (556113255768).

Almost surely, 2^{2211212231101} is an apocalyptic number.

It is an amenable number.

2211212231101 is a deficient number, since it is larger than the sum of its proper divisors (13240791971).

2211212231101 is a wasteful number, since it uses less digits than its factorization.

2211212231101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13240791970.

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

Adding to 2211212231101 its reverse (1011322121122), we get a palindrome (3222534352223).

The spelling of 2211212231101 in words is "two trillion, two hundred eleven billion, two hundred twelve million, two hundred thirty-one thousand, one hundred one".