101221000442 has 8 divisors (see below), whose sum is σ = 151832859456. Its totient is φ = 50610047292.

The previous prime is 101221000421. The next prime is 101221000459. The reversal of 101221000442 is 244000122101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 101221000442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274703 + ... + 527165.

It is an arithmetic number, because the mean of its divisors is an integer number (18979107432).

Almost surely, 2^101221000442 is an apocalyptic number.

101221000442 is a deficient number, since it is larger than the sum of its proper divisors (50611859014).

101221000442 is a wasteful number, since it uses less digits than its factorization.

101221000442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452932.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 101221000442 its reverse (244000122101), we get a palindrome (345221122543).

The spelling of 101221000442 in words is "one hundred one billion, two hundred twenty-one million, four hundred forty-two", and thus it is an aban number.