101223187044 has 96 divisors (see below), whose sum is σ = 277660486656. Its totient is φ = 28094947200.

The previous prime is 101223187019. The next prime is 101223187099. The reversal of 101223187044 is 440781322101.

It is a super-2 number, since 2×101223187044² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101223186996 and 101223187014.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1973119 + ... + 2023769.

It is an arithmetic number, because the mean of its divisors is an integer number (2892296736).

Almost surely, 2^101223187044 is an apocalyptic number.

101223187044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101223187044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138830243328).

101223187044 is an abundant number, since it is smaller than the sum of its proper divisors (176437299612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101223187044 is a wasteful number, since it uses less digits than its factorization.

101223187044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51345 (or 51343 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The spelling of 101223187044 in words is "one hundred one billion, two hundred twenty-three million, one hundred eighty-seven thousand, forty-four".