20101121202 has 32 divisors (see below), whose sum is σ = 41697635904. Its totient is φ = 6454728000.

The previous prime is 20101121143. The next prime is 20101121207. The reversal of 20101121202 is 20212110102.

It is not an unprimeable number, because it can be changed into a prime (20101121207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425824 + ... + 470667.

It is an arithmetic number, because the mean of its divisors is an integer number (1303051122).

Almost surely, 2^20101121202 is an apocalyptic number.

20101121202 is an abundant number, since it is smaller than the sum of its proper divisors (21596514702).

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

20101121202 is a wasteful number, since it uses less digits than its factorization.

20101121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896634.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20101121202 its reverse (20212110102), we get a palindrome (40313231304).

The spelling of 20101121202 in words is "twenty billion, one hundred one million, one hundred twenty-one thousand, two hundred two".