101220222031 has 2 divisors, whose sum is σ = 101220222032. Its totient is φ = 101220222030.

The previous prime is 101220222029. The next prime is 101220222091. The reversal of 101220222031 is 130222022101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101220222031 - 2¹ = 101220222029 is a prime.

It is a super-2 number, since 2×101220222031² (a number of 23 digits) contains 22 as substring.

Together with 101220222029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 101220221996 and 101220222014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101220222011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610111015 + 50610111016.

It is an arithmetic number, because the mean of its divisors is an integer number (50610111016).

Almost surely, 2^101220222031 is an apocalyptic number.

101220222031 is a deficient number, since it is larger than the sum of its proper divisors (1).

101220222031 is an equidigital number, since it uses as much as digits as its factorization.

101220222031 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 101220222031 its reverse (130222022101), we get a palindrome (231442244132).

The spelling of 101220222031 in words is "one hundred one billion, two hundred twenty million, two hundred twenty-two thousand, thirty-one".