101012121100221 has 8 divisors (see below), whose sum is σ = 138322904569824. Its totient is φ = 65521375848720.

The previous prime is 101012121100201. The next prime is 101012121100243. The reversal of 101012121100221 is 122001121210101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101012121100221 - 2²⁶ = 101012053991357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101012121100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101012121100201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455009554395 + ... + 455009554616.

It is an arithmetic number, because the mean of its divisors is an integer number (17290363071228).

Almost surely, 2^{101012121100221} is an apocalyptic number.

It is an amenable number.

101012121100221 is a deficient number, since it is larger than the sum of its proper divisors (37310783469603).

101012121100221 is an equidigital number, since it uses as much as digits as its factorization.

101012121100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910019109051.

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

Adding to 101012121100221 its reverse (122001121210101), we get a palindrome (223013242310322).

The spelling of 101012121100221 in words is "one hundred one trillion, twelve billion, one hundred twenty-one million, one hundred thousand, two hundred twenty-one".