201102101244 has 48 divisors (see below), whose sum is σ = 568773623040. Its totient is φ = 60940030320.

The previous prime is 201102101243. The next prime is 201102101287. The reversal of 201102101244 is 442101201102.

201102101244 is a `hidden beast` number, since 201 + 10 + 210 + 1 + 244 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201102101243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84637744 + ... + 84640119.

It is an arithmetic number, because the mean of its divisors is an integer number (11849450480).

Almost surely, 2^201102101244 is an apocalyptic number.

It is an amenable number.

201102101244 is an abundant number, since it is smaller than the sum of its proper divisors (367671521796).

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

201102101244 is a wasteful number, since it uses less digits than its factorization.

201102101244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169277887 (or 169277879 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 201102101244 its reverse (442101201102), we get a palindrome (643203302346).

The spelling of 201102101244 in words is "two hundred one billion, one hundred two million, one hundred one thousand, two hundred forty-four".