10202012021121 has 8 divisors (see below), whose sum is σ = 13614948418560. Its totient is φ = 6795208485552.

The previous prime is 10202012021107. The next prime is 10202012021129. The reversal of 10202012021121 is 12112021020201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10202012021121 - 2¹⁰ = 10202012020097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10202012021121.

It is not an unprimeable number, because it can be changed into a prime (10202012021129) 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, 1533211585 + ... + 1533218238.

It is an arithmetic number, because the mean of its divisors is an integer number (1701868552320).

Almost surely, 2^{10202012021121} is an apocalyptic number.

It is an amenable number.

10202012021121 is a deficient number, since it is larger than the sum of its proper divisors (3412936397439).

10202012021121 is a wasteful number, since it uses less digits than its factorization.

10202012021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3066430935.

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

Adding to 10202012021121 its reverse (12112021020201), we get a palindrome (22314033041322).

The spelling of 10202012021121 in words is "ten trillion, two hundred two billion, twelve million, twenty-one thousand, one hundred twenty-one".