20100221210002 has 8 divisors (see below), whose sum is σ = 30212242148736. Its totient is φ = 10029473827092.

The previous prime is 20100221209997. The next prime is 20100221210009. The reversal of 20100221210002 is 20001212200102.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (20100221210009) 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, 10318387738 + ... + 10318389685.

It is an arithmetic number, because the mean of its divisors is an integer number (3776530268592).

Almost surely, 2^{20100221210002} is an apocalyptic number.

20100221210002 is a deficient number, since it is larger than the sum of its proper divisors (10112020938734).

20100221210002 is a wasteful number, since it uses less digits than its factorization.

20100221210002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20636777912.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20100221210002 its reverse (20001212200102), we get a palindrome (40101433410104).

The spelling of 20100221210002 in words is "twenty trillion, one hundred billion, two hundred twenty-one million, two hundred ten thousand, two".