101201210011221 has 8 divisors (see below), whose sum is σ = 136948901109984. Its totient is φ = 66460496126640.

The previous prime is 101201210011199. The next prime is 101201210011247. The reversal of 101201210011221 is 122110012102101.

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 101201210011221 - 2⁶ = 101201210011157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101201210011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101201210011021) 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, 251744303310 + ... + 251744303711.

It is an arithmetic number, because the mean of its divisors is an integer number (17118612638748).

Almost surely, 2^{101201210011221} is an apocalyptic number.

It is an amenable number.

101201210011221 is a deficient number, since it is larger than the sum of its proper divisors (35747691098763).

101201210011221 is an equidigital number, since it uses as much as digits as its factorization.

101201210011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503488607091.

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

Adding to 101201210011221 its reverse (122110012102101), we get a palindrome (223311222113322).

The spelling of 101201210011221 in words is "one hundred one trillion, two hundred one billion, two hundred ten million, eleven thousand, two hundred twenty-one".