20211002220012 has 96 divisors (see below), whose sum is σ = 49812300518400. Its totient is φ = 6360437236032.

The previous prime is 20211002220001. The next prime is 20211002220043. The reversal of 20211002220012 is 21002220011202.

It is a super-2 number, since 2×20211002220012² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20211002219973 and 20211002220000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90357103 + ... + 90580505.

It is an arithmetic number, because the mean of its divisors is an integer number (518878130400).

Almost surely, 2^{20211002220012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20211002220012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24906150259200).

20211002220012 is an abundant number, since it is smaller than the sum of its proper divisors (29601298298388).

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

20211002220012 is a wasteful number, since it uses less digits than its factorization.

20211002220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224795 (or 224793 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20211002220012 its reverse (21002220011202), we get a palindrome (41213222231214).

The spelling of 20211002220012 in words is "twenty trillion, two hundred eleven billion, two million, two hundred twenty thousand, twelve".