20121010121202 has 16 divisors (see below), whose sum is σ = 40257373963392. Its totient is φ = 6704444420240.

The previous prime is 20121010121143. The next prime is 20121010121287. The reversal of 20121010121202 is 20212101012102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639721338 + ... + 639752789.

It is an arithmetic number, because the mean of its divisors is an integer number (2516085872712).

Almost surely, 2^{20121010121202} is an apocalyptic number.

20121010121202 is an abundant number, since it is smaller than the sum of its proper divisors (20136363842190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20121010121202 is a wasteful number, since it uses less digits than its factorization.

20121010121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279476753.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20121010121202 its reverse (20212101012102), we get a palindrome (40333111133304).

The spelling of 20121010121202 in words is "twenty trillion, one hundred twenty-one billion, ten million, one hundred twenty-one thousand, two hundred two".