10121011100221 has 8 divisors (see below), whose sum is σ = 11573850451520. Its totient is φ = 8669916904608.

The previous prime is 10121011100201. The next prime is 10121011100251. The reversal of 10121011100221 is 12200111012101.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10121011100221 - 2⁷ = 10121011100093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121011100201) 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, 436276491 + ... + 436299688.

It is an arithmetic number, because the mean of its divisors is an integer number (1446731306440).

Almost surely, 2^{10121011100221} is an apocalyptic number.

It is an amenable number.

10121011100221 is a deficient number, since it is larger than the sum of its proper divisors (1452839351299).

10121011100221 is an equidigital number, since it uses as much as digits as its factorization.

10121011100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872577843.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10121011100221 its reverse (12200111012101), we get a palindrome (22321122112322).

The spelling of 10121011100221 in words is "ten trillion, one hundred twenty-one billion, eleven million, one hundred thousand, two hundred twenty-one".