101139221869 has 4 divisors (see below), whose sum is σ = 115587682144. Its totient is φ = 86690761596.

The previous prime is 101139221851. The next prime is 101139221873. The reversal of 101139221869 is 968122931101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101139221869 - 2⁵ = 101139221837 is a prime.

It is a super-2 number, since 2×101139221869² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101139221069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7224230127 + ... + 7224230140.

It is an arithmetic number, because the mean of its divisors is an integer number (28896920536).

Almost surely, 2^101139221869 is an apocalyptic number.

It is an amenable number.

101139221869 is a deficient number, since it is larger than the sum of its proper divisors (14448460275).

101139221869 is an equidigital number, since it uses as much as digits as its factorization.

101139221869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14448460274.

The product of its (nonzero) digits is 46656, while the sum is 43.

The spelling of 101139221869 in words is "one hundred one billion, one hundred thirty-nine million, two hundred twenty-one thousand, eight hundred sixty-nine".