122221100001031 has 2 divisors, whose sum is σ = 122221100001032. Its totient is φ = 122221100001030.

The previous prime is 122221100001029. The next prime is 122221100001083. The reversal of 122221100001031 is 130100001122221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122221100001031 - 2¹ = 122221100001029 is a prime.

It is a super-2 number, since 2×122221100001031² (a number of 29 digits) contains 22 as substring.

Together with 122221100001029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 122221100000996 and 122221100001014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122221100001331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110550000515 + 61110550000516.

It is an arithmetic number, because the mean of its divisors is an integer number (61110550000516).

Almost surely, 2^{122221100001031} is an apocalyptic number.

122221100001031 is a deficient number, since it is larger than the sum of its proper divisors (1).

122221100001031 is an equidigital number, since it uses as much as digits as its factorization.

122221100001031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 122221100001031 its reverse (130100001122221), we get a palindrome (252321101123252).

The spelling of 122221100001031 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, one hundred million, one thousand, thirty-one".