10211101012221 has 16 divisors (see below), whose sum is σ = 14211994683648. Its totient is φ = 6514836264000.

The previous prime is 10211101012181. The next prime is 10211101012261. The reversal of 10211101012221 is 12221010111201.

It is a happy number.

10211101012221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10211101012181) and next prime (10211101012261).

It is not a de Polignac number, because 10211101012221 - 2²² = 10211096817917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10211101012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211101012261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 754025205 + ... + 754038746.

It is an arithmetic number, because the mean of its divisors is an integer number (888249667728).

Almost surely, 2^{10211101012221} is an apocalyptic number.

It is an amenable number.

10211101012221 is a deficient number, since it is larger than the sum of its proper divisors (4000893671427).

10211101012221 is a wasteful number, since it uses less digits than its factorization.

10211101012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508064052.

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

Adding to 10211101012221 its reverse (12221010111201), we get a palindrome (22432111123422).

The spelling of 10211101012221 in words is "ten trillion, two hundred eleven billion, one hundred one million, twelve thousand, two hundred twenty-one".