101201221011 has 16 divisors (see below), whose sum is σ = 147300048000. Its totient is φ = 61293126720.

The previous prime is 101201220943. The next prime is 101201221013. The reversal of 101201221011 is 110122102101.

It is not a de Polignac number, because 101201221011 - 2¹⁴ = 101201204627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101201221013) 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, 973450 + ... + 1072383.

It is an arithmetic number, because the mean of its divisors is an integer number (9206253000).

Almost surely, 2^101201221011 is an apocalyptic number.

101201221011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101201221011 is a deficient number, since it is larger than the sum of its proper divisors (46098826989).

101201221011 is a wasteful number, since it uses less digits than its factorization.

101201221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047346.

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

Adding to 101201221011 its reverse (110122102101), we get a palindrome (211323323112).

It can be divided in two parts, 10 and 1201221011, that added together give a palindrome (1201221021).

The spelling of 101201221011 in words is "one hundred one billion, two hundred one million, two hundred twenty-one thousand, eleven".