221122110022031 has 2 divisors, whose sum is σ = 221122110022032. Its totient is φ = 221122110022030.

The previous prime is 221122110021959. The next prime is 221122110022091. The reversal of 221122110022031 is 130220011221122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221122110022031 is a prime.

It is a super-2 number, since 2×221122110022031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221122110021994 and 221122110022012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221122110022091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110561055011015 + 110561055011016.

It is an arithmetic number, because the mean of its divisors is an integer number (110561055011016).

Almost surely, 2^{221122110022031} is an apocalyptic number.

221122110022031 is a deficient number, since it is larger than the sum of its proper divisors (1).

221122110022031 is an equidigital number, since it uses as much as digits as its factorization.

221122110022031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 221122110022031 its reverse (130220011221122), we get a palindrome (351342121243153).

The spelling of 221122110022031 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, one hundred ten million, twenty-two thousand, thirty-one".