10202121102011 has 4 divisors (see below), whose sum is σ = 10301170821552. Its totient is φ = 10103071382472.

The previous prime is 10202121102001. The next prime is 10202121102073. The reversal of 10202121102011 is 11020112120201.

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 10202121102011 - 2¹⁴ = 10202121085627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10202121102001) 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, 49524859616 + ... + 49524859821.

It is an arithmetic number, because the mean of its divisors is an integer number (2575292705388).

Almost surely, 2^{10202121102011} is an apocalyptic number.

10202121102011 is a deficient number, since it is larger than the sum of its proper divisors (99049719541).

10202121102011 is an equidigital number, since it uses as much as digits as its factorization.

10202121102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99049719540.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10202121102011 its reverse (11020112120201), we get a palindrome (21222233222212).

The spelling of 10202121102011 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, one hundred two thousand, eleven".