101222635240 has 16 divisors (see below), whose sum is σ = 227750929380. Its totient is φ = 40489054080.

The previous prime is 101222635211. The next prime is 101222635247. The reversal of 101222635240 is 42536222101.

It can be written as a sum of positive squares in 2 ways, for example, as 101158346916 + 64288324 = 318054^2 + 8018^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101222635199 and 101222635208.

It is not an unprimeable number, because it can be changed into a prime (101222635247) 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, 1265282901 + ... + 1265282980.

Almost surely, 2^101222635240 is an apocalyptic number.

101222635240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101222635240 is an abundant number, since it is smaller than the sum of its proper divisors (126528294140).

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

101222635240 is a wasteful number, since it uses less digits than its factorization.

101222635240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530565892 (or 2530565888 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 101222635240 its reverse (42536222101), we get a palindrome (143758857341).

The spelling of 101222635240 in words is "one hundred one billion, two hundred twenty-two million, six hundred thirty-five thousand, two hundred forty".