101221312002 has 16 divisors (see below), whose sum is σ = 202449722112. Its totient is φ = 33739254320.

The previous prime is 101221311959. The next prime is 101221312019. The reversal of 101221312002 is 200213122101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100449 + ... + 461012.

It is an arithmetic number, because the mean of its divisors is an integer number (12653107632).

Almost surely, 2^101221312002 is an apocalyptic number.

101221312002 is an abundant number, since it is smaller than the sum of its proper divisors (101228410110).

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

101221312002 is a wasteful number, since it uses less digits than its factorization.

101221312002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591513.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 101221312002 its reverse (200213122101), we get a palindrome (301434434103).

The spelling of 101221312002 in words is "one hundred one billion, two hundred twenty-one million, three hundred twelve thousand, two".