2011220202031 has 2 divisors, whose sum is σ = 2011220202032. Its totient is φ = 2011220202030.

The previous prime is 2011220202001. The next prime is 2011220202041. The reversal of 2011220202031 is 1302020221102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2011220202031 - 2⁵ = 2011220201999 is a prime.

It is a super-2 number, since 2×2011220202031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2011220201996 and 2011220202014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011220202001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005610101015 + 1005610101016.

It is an arithmetic number, because the mean of its divisors is an integer number (1005610101016).

Almost surely, 2^{2011220202031} is an apocalyptic number.

2011220202031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011220202031 is an equidigital number, since it uses as much as digits as its factorization.

2011220202031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2011220202031 its reverse (1302020221102), we get a palindrome (3313240423133).

The spelling of 2011220202031 in words is "two trillion, eleven billion, two hundred twenty million, two hundred two thousand, thirty-one".