101012112021221 has 8 divisors (see below), whose sum is σ = 104283801484800. Its totient is φ = 97741249697520.

The previous prime is 101012112021137. The next prime is 101012112021229. The reversal of 101012112021221 is 122120211210101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101012112021221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101012112021221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101012112021229) 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, 206536766 + ... + 207025263.

It is an arithmetic number, because the mean of its divisors is an integer number (13035475185600).

Almost surely, 2^{101012112021221} is an apocalyptic number.

It is an amenable number.

101012112021221 is a deficient number, since it is larger than the sum of its proper divisors (3271689463579).

101012112021221 is an equidigital number, since it uses as much as digits as its factorization.

101012112021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413569939.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 101012112021221 its reverse (122120211210101), we get a palindrome (223132323231322).

The spelling of 101012112021221 in words is "one hundred one trillion, twelve billion, one hundred twelve million, twenty-one thousand, two hundred twenty-one".