10202111111111 has 8 divisors (see below), whose sum is σ = 10226736280320. Its totient is φ = 10177487259192.

The previous prime is 10202111111089. The next prime is 10202111111131. The reversal of 10202111111111 is 11111111120201.

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

It is a cyclic number.

It is not a de Polignac number, because 10202111111111 - 2³⁰ = 10201037369287 is a prime.

It is a super-2 number, since 2×10202111111111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

10202111111111 is a modest number, since divided by 1111111 gives 1020211 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202111111131) 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, 16175276 + ... + 16794158.

It is an arithmetic number, because the mean of its divisors is an integer number (1278342035040).

Almost surely, 2^{10202111111111} is an apocalyptic number.

10202111111111 is a deficient number, since it is larger than the sum of its proper divisors (24625169209).

10202111111111 is an equidigital number, since it uses as much as digits as its factorization.

10202111111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658645.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 10202111111111 its reverse (11111111120201), we get a palindrome (21313222231312).

The spelling of 10202111111111 in words is "ten trillion, two hundred two billion, one hundred eleven million, one hundred eleven thousand, one hundred eleven".