101021221000012 has 12 divisors (see below), whose sum is σ = 177913169469280. Its totient is φ = 50188886865936.

The previous prime is 101021220999949. The next prime is 101021221000013. The reversal of 101021221000012 is 210000122120101.

It is a junction number, because it is equal to n+sod(n) for n = 101021220999956 and 101021221000001.

It is not an unprimeable number, because it can be changed into a prime (101021221000013) 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, 80430907812 + ... + 80430909067.

Almost surely, 2^{101021221000012} is an apocalyptic number.

It is an amenable number.

101021221000012 is a deficient number, since it is larger than the sum of its proper divisors (76891948469268).

101021221000012 is a wasteful number, since it uses less digits than its factorization.

101021221000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160861817040 (or 160861817038 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 101021221000012 its reverse (210000122120101), we get a palindrome (311021343120113).

The spelling of 101021221000012 in words is "one hundred one trillion, twenty-one billion, two hundred twenty-one million, twelve", and thus it is an aban number.