10202121012005 has 64 divisors (see below), whose sum is σ = 13585730780160. Its totient is φ = 7306753843200.

The previous prime is 10202121011983. The next prime is 10202121012007. The reversal of 10202121012005 is 50021012120201.

It is not a de Polignac number, because 10202121012005 - 2⁶ = 10202121011941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202121012007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 377688950 + ... + 377715960.

It is an arithmetic number, because the mean of its divisors is an integer number (212277043440).

Almost surely, 2^{10202121012005} is an apocalyptic number.

It is an amenable number.

10202121012005 is a deficient number, since it is larger than the sum of its proper divisors (3383609768155).

10202121012005 is a wasteful number, since it uses less digits than its factorization.

10202121012005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27902.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 10202121012005 its reverse (50021012120201), we get a palindrome (60223133132206).

The spelling of 10202121012005 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, twelve thousand, five".