10101022012221 has 64 divisors (see below), whose sum is σ = 15730056407040. Its totient is φ = 5646274387200.

The previous prime is 10101022012199. The next prime is 10101022012303. The reversal of 10101022012221 is 12221022010101.

It is not a de Polignac number, because 10101022012221 - 2¹⁹ = 10101021487933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10101022012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101022012321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 256997271 + ... + 257036571.

It is an arithmetic number, because the mean of its divisors is an integer number (245782131360).

Almost surely, 2^{10101022012221} is an apocalyptic number.

It is an amenable number.

10101022012221 is a deficient number, since it is larger than the sum of its proper divisors (5629034394819).

10101022012221 is a wasteful number, since it uses less digits than its factorization.

10101022012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40386.

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

Adding to 10101022012221 its reverse (12221022010101), we get a palindrome (22322044022322).

The spelling of 10101022012221 in words is "ten trillion, one hundred one billion, twenty-two million, twelve thousand, two hundred twenty-one".