20121220012202 has 8 divisors (see below), whose sum is σ = 30187079962500. Its totient is φ = 10058860024704.

The previous prime is 20121220012121. The next prime is 20121220012253. The reversal of 20121220012202 is 20221002212102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17345400777961 + 2775819234241 = 4164781^2 + 1666079^2 .

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, 874976327 + ... + 874999322.

Almost surely, 2^{20121220012202} is an apocalyptic number.

20121220012202 is a deficient number, since it is larger than the sum of its proper divisors (10065859950298).

20121220012202 is a wasteful number, since it uses less digits than its factorization.

20121220012202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749981400.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20121220012202 its reverse (20221002212102), we get a palindrome (40342222224304).

The spelling of 20121220012202 in words is "twenty trillion, one hundred twenty-one billion, two hundred twenty million, twelve thousand, two hundred two".