101221002010221 has 32 divisors (see below), whose sum is σ = 141806854172160. Its totient is φ = 64146974870016.

The previous prime is 101221002010153. The next prime is 101221002010241. The reversal of 101221002010221 is 122010200122101.

It is not a de Polignac number, because 101221002010221 - 2¹¹ = 101221002008173 is a prime.

It is a super-3 number, since 3×101221002010221³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101221002010221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221002010241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14080866 + ... + 20017811.

It is an arithmetic number, because the mean of its divisors is an integer number (4431464192880).

Almost surely, 2^{101221002010221} is an apocalyptic number.

It is an amenable number.

101221002010221 is a deficient number, since it is larger than the sum of its proper divisors (40585852161939).

101221002010221 is a wasteful number, since it uses less digits than its factorization.

101221002010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34099333.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 101221002010221 its reverse (122010200122101), we get a palindrome (223231202132322).

The spelling of 101221002010221 in words is "one hundred one trillion, two hundred twenty-one billion, two million, ten thousand, two hundred twenty-one".