101220132109 has 2 divisors, whose sum is σ = 101220132110. Its totient is φ = 101220132108.

The previous prime is 101220132043. The next prime is 101220132131. The reversal of 101220132109 is 901231022101.

It is an a-pointer prime, because the next prime (101220132131) can be obtained adding 101220132109 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67896724900 + 33323407209 = 260570^2 + 182547^2 .

It is a cyclic number.

It is not a de Polignac number, because 101220132109 - 2⁷ = 101220131981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101220132109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101220135109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610066054 + 50610066055.

It is an arithmetic number, because the mean of its divisors is an integer number (50610066055).

Almost surely, 2^101220132109 is an apocalyptic number.

It is an amenable number.

101220132109 is a deficient number, since it is larger than the sum of its proper divisors (1).

101220132109 is an equidigital number, since it uses as much as digits as its factorization.

101220132109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 101220132109 in words is "one hundred one billion, two hundred twenty million, one hundred thirty-two thousand, one hundred nine".