101221012201011 has 64 divisors (see below), whose sum is σ = 143779969382400. Its totient is φ = 63199362530304.

The previous prime is 101221012200961. The next prime is 101221012201013. The reversal of 101221012201011 is 110102210122101.

It is a happy number.

It is not a de Polignac number, because 101221012201011 - 2¹¹ = 101221012198963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101221012201013) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13198719885 + ... + 13198727553.

It is an arithmetic number, because the mean of its divisors is an integer number (2246562021600).

Almost surely, 2^{101221012201011} is an apocalyptic number.

101221012201011 is a deficient number, since it is larger than the sum of its proper divisors (42558957181389).

101221012201011 is a wasteful number, since it uses less digits than its factorization.

101221012201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14660.

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

Adding to 101221012201011 its reverse (110102210122101), we get a palindrome (211323222323112).

The spelling of 101221012201011 in words is "one hundred one trillion, two hundred twenty-one billion, twelve million, two hundred one thousand, eleven".