20101021221202 has 8 divisors (see below), whose sum is σ = 30151568174076. Its totient is φ = 10050498496512.

The previous prime is 20101021221167. The next prime is 20101021221217. The reversal of 20101021221202 is 20212212010102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15120362257081 + 4980658964121 = 3888491^2 + 2231739^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3817263 + ... + 7400914.

Almost surely, 2^{20101021221202} is an apocalyptic number.

20101021221202 is a deficient number, since it is larger than the sum of its proper divisors (10050546952874).

20101021221202 is a wasteful number, since it uses less digits than its factorization.

20101021221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12114092.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20101021221202 its reverse (20212212010102), we get a palindrome (40313233231304).

The spelling of 20101021221202 in words is "twenty trillion, one hundred one billion, twenty-one million, two hundred twenty-one thousand, two hundred two".