101219785002 has 128 divisors (see below), whose sum is σ = 264056832000. Its totient is φ = 28727622000.

The previous prime is 101219784947. The next prime is 101219785003. The reversal of 101219785002 is 200587912101.

It is a happy number.

It is a super-2 number, since 2×101219785002² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101219785003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2778727 + ... + 2814917.

It is an arithmetic number, because the mean of its divisors is an integer number (2062944000).

Almost surely, 2^101219785002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101219785002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132028416000).

101219785002 is an abundant number, since it is smaller than the sum of its proper divisors (162837046998).

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

101219785002 is a wasteful number, since it uses less digits than its factorization.

101219785002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36374 (or 36354 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The spelling of 101219785002 in words is "one hundred one billion, two hundred nineteen million, seven hundred eighty-five thousand, two".