20102221001196 has 120 divisors (see below), whose sum is σ = 54463786478640. Its totient is φ = 6457719945600.

The previous prime is 20102221001183. The next prime is 20102221001237. The reversal of 20102221001196 is 69110012220102.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3105931 + ... + 7060541.

It is an arithmetic number, because the mean of its divisors is an integer number (453864887322).

Almost surely, 2^{20102221001196} 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 20102221001196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27231893239320).

20102221001196 is an abundant number, since it is smaller than the sum of its proper divisors (34361565477444).

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

20102221001196 is a wasteful number, since it uses less digits than its factorization.

20102221001196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3955197 (or 3955186 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

Adding to 20102221001196 its reverse (69110012220102), we get a palindrome (89212233221298).

The spelling of 20102221001196 in words is "twenty trillion, one hundred two billion, two hundred twenty-one million, one thousand, one hundred ninety-six".