10001220102111 has 16 divisors (see below), whose sum is σ = 15651845103104. Its totient is φ = 5560523917344.

The previous prime is 10001220102103. The next prime is 10001220102113. The reversal of 10001220102111 is 11120102210001.

It is not a de Polignac number, because 10001220102111 - 2³ = 10001220102103 is a prime.

It is a super-2 number, since 2×10001220102111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001220102113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6435790795 + ... + 6435792348.

It is an arithmetic number, because the mean of its divisors is an integer number (978240318944).

Almost surely, 2^{10001220102111} is an apocalyptic number.

10001220102111 is a deficient number, since it is larger than the sum of its proper divisors (5650625000993).

10001220102111 is a wasteful number, since it uses less digits than its factorization.

10001220102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12871583190.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10001220102111 its reverse (11120102210001), we get a palindrome (21121322312112).

The spelling of 10001220102111 in words is "ten trillion, one billion, two hundred twenty million, one hundred two thousand, one hundred eleven".