101221302040 has 32 divisors (see below), whose sum is σ = 227760659280. Its totient is φ = 40486257792.

The previous prime is 101221302001. The next prime is 101221302043. The reversal of 101221302040 is 40203122101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221302043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 780307 + ... + 900733.

Almost surely, 2^101221302040 is an apocalyptic number.

101221302040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101221302040 is an abundant number, since it is smaller than the sum of its proper divisors (126539357240).

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

101221302040 is a wasteful number, since it uses less digits than its factorization.

101221302040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141451 (or 141447 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 101221302040 its reverse (40203122101), we get a palindrome (141424424141).

The spelling of 101221302040 in words is "one hundred one billion, two hundred twenty-one million, three hundred two thousand, forty".