10202212121011 has 4 divisors (see below), whose sum is σ = 10202566233472. Its totient is φ = 10201858008552.

The previous prime is 10202212121009. The next prime is 10202212121021. The reversal of 10202212121011 is 11012121220201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10202212121011 - 2¹ = 10202212121009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10202212121021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177013011 + ... + 177070636.

It is an arithmetic number, because the mean of its divisors is an integer number (2550641558368).

Almost surely, 2^{10202212121011} is an apocalyptic number.

10202212121011 is a deficient number, since it is larger than the sum of its proper divisors (354112461).

10202212121011 is an equidigital number, since it uses as much as digits as its factorization.

10202212121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354112460.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10202212121011 its reverse (11012121220201), we get a palindrome (21214333341212).

The spelling of 10202212121011 in words is "ten trillion, two hundred two billion, two hundred twelve million, one hundred twenty-one thousand, eleven".