20110222221031 has 2 divisors, whose sum is σ = 20110222221032. Its totient is φ = 20110222221030.

The previous prime is 20110222220969. The next prime is 20110222221107. The reversal of 20110222221031 is 13012222201102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20110222221031 - 2⁹ = 20110222220519 is a prime.

It is a super-2 number, since 2×20110222221031² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20110222222031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055111110515 + 10055111110516.

It is an arithmetic number, because the mean of its divisors is an integer number (10055111110516).

Almost surely, 2^{20110222221031} is an apocalyptic number.

20110222221031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110222221031 is an equidigital number, since it uses as much as digits as its factorization.

20110222221031 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 19.

Adding to 20110222221031 its reverse (13012222201102), we get a palindrome (33122444422133).

The spelling of 20110222221031 in words is "twenty trillion, one hundred ten billion, two hundred twenty-two million, two hundred twenty-one thousand, thirty-one".