20121210202 has 8 divisors (see below), whose sum is σ = 30419467776. Its totient is φ = 9981387612.

The previous prime is 20121210181. The next prime is 20121210209. The reversal of 20121210202 is 20201212102.

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 (20121210209) 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, 39608428 + ... + 39608935.

It is an arithmetic number, because the mean of its divisors is an integer number (3802433472).

Almost surely, 2^20121210202 is an apocalyptic number.

20121210202 is a deficient number, since it is larger than the sum of its proper divisors (10298257574).

20121210202 is a wasteful number, since it uses less digits than its factorization.

20121210202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79217492.

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

Adding to 20121210202 its reverse (20201212102), we get a palindrome (40322422304).

The spelling of 20121210202 in words is "twenty billion, one hundred twenty-one million, two hundred ten thousand, two hundred two".