101221001122011 has 16 divisors (see below), whose sum is σ = 139315959856128. Its totient is φ = 65303387200800.

The previous prime is 101221001121983. The next prime is 101221001122019. The reversal of 101221001122011 is 110221100122101.

It is a happy number.

It is not a de Polignac number, because 101221001122011 - 2²² = 101220996927707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101221001122019) 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, 8783016 + ... + 16720746.

It is an arithmetic number, because the mean of its divisors is an integer number (8707247491008).

Almost surely, 2^{101221001122011} is an apocalyptic number.

101221001122011 is a deficient number, since it is larger than the sum of its proper divisors (38094958734117).

101221001122011 is a wasteful number, since it uses less digits than its factorization.

101221001122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8074882.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101221001122011 its reverse (110221100122101), we get a palindrome (211442101244112).

The spelling of 101221001122011 in words is "one hundred one trillion, two hundred twenty-one billion, one million, one hundred twenty-two thousand, eleven".