101022231421 has 2 divisors, whose sum is σ = 101022231422. Its totient is φ = 101022231420.

The previous prime is 101022231353. The next prime is 101022231461. The reversal of 101022231421 is 124132220101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96991759225 + 4030472196 = 311435^2 + 63486^2 .

It is a cyclic number.

It is not a de Polignac number, because 101022231421 - 2⁹ = 101022230909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101022231461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50511115710 + 50511115711.

It is an arithmetic number, because the mean of its divisors is an integer number (50511115711).

Almost surely, 2^101022231421 is an apocalyptic number.

It is an amenable number.

101022231421 is a deficient number, since it is larger than the sum of its proper divisors (1).

101022231421 is an equidigital number, since it uses as much as digits as its factorization.

101022231421 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 101022231421 its reverse (124132220101), we get a palindrome (225154451522).

The spelling of 101022231421 in words is "one hundred one billion, twenty-two million, two hundred thirty-one thousand, four hundred twenty-one".