20121121202 has 32 divisors (see below), whose sum is σ = 37339220352. Its totient is φ = 7918746624.

The previous prime is 20121121169. The next prime is 20121121213. The reversal of 20121121202 is 20212112102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251288 + ... + 321539.

It is an arithmetic number, because the mean of its divisors is an integer number (1166850636).

Almost surely, 2^20121121202 is an apocalyptic number.

20121121202 is a deficient number, since it is larger than the sum of its proper divisors (17218099150).

20121121202 is a wasteful number, since it uses less digits than its factorization.

20121121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573042.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20121121202 its reverse (20212112102), we get a palindrome (40333233304).

The spelling of 20121121202 in words is "twenty billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred two".