220211020031 has 2 divisors, whose sum is σ = 220211020032. Its totient is φ = 220211020030.

The previous prime is 220211019989. The next prime is 220211020061. The reversal of 220211020031 is 130020112022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220211020031 - 2¹⁴ = 220211003647 is a prime.

It is a super-2 number, since 2×220211020031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220211019988 and 220211020015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220211020061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110105510015 + 110105510016.

It is an arithmetic number, because the mean of its divisors is an integer number (110105510016).

Almost surely, 2^220211020031 is an apocalyptic number.

220211020031 is a deficient number, since it is larger than the sum of its proper divisors (1).

220211020031 is an equidigital number, since it uses as much as digits as its factorization.

220211020031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 220211020031 its reverse (130020112022), we get a palindrome (350231132053).

The spelling of 220211020031 in words is "two hundred twenty billion, two hundred eleven million, twenty thousand, thirty-one".