2011203222231 has 12 divisors (see below), whose sum is σ = 3119417242872. Its totient is φ = 1149258984048.

The previous prime is 2011203222169. The next prime is 2011203222233. The reversal of 2011203222231 is 1322223021102.

It is not a de Polignac number, because 2011203222231 - 2⁷ = 2011203222103 is a prime.

It is a super-2 number, since 2×2011203222231² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2011203222198 and 2011203222207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011203222233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6840827140 + ... + 6840827433.

It is an arithmetic number, because the mean of its divisors is an integer number (259951436906).

Almost surely, 2^{2011203222231} is an apocalyptic number.

2011203222231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2011203222231 is a deficient number, since it is larger than the sum of its proper divisors (1108214020641).

2011203222231 is a wasteful number, since it uses less digits than its factorization.

2011203222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13681654590 (or 13681654583 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2011203222231 its reverse (1322223021102), we get a palindrome (3333426243333).

The spelling of 2011203222231 in words is "two trillion, eleven billion, two hundred three million, two hundred twenty-two thousand, two hundred thirty-one".