20121241002 has 16 divisors (see below), whose sum is σ = 40244647872. Its totient is φ = 6706719360.

The previous prime is 20121240989. The next prime is 20121241003. The reversal of 20121241002 is 20014212102.

It is not an unprimeable number, because it can be changed into a prime (20121241003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46458 + ... + 205914.

It is an arithmetic number, because the mean of its divisors is an integer number (2515290492).

Almost surely, 2^20121241002 is an apocalyptic number.

20121241002 is an abundant number, since it is smaller than the sum of its proper divisors (20123406870).

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

20121241002 is a wasteful number, since it uses less digits than its factorization.

20121241002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180493.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20121241002 its reverse (20014212102), we get a palindrome (40135453104).

The spelling of 20121241002 in words is "twenty billion, one hundred twenty-one million, two hundred forty-one thousand, two".