10211111022021 has 32 divisors (see below), whose sum is σ = 16968805109760. Its totient is φ = 5317902293184.

The previous prime is 10211111022011. The next prime is 10211111022109. The reversal of 10211111022021 is 12022011111201.

It is a happy number.

10211111022021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10211111022021 - 2¹⁵ = 10211110989253 is a prime.

It is a super-2 number, since 2×10211111022021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10211111022011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236708415 + ... + 236751548.

It is an arithmetic number, because the mean of its divisors is an integer number (530275159680).

Almost surely, 2^{10211111022021} is an apocalyptic number.

It is an amenable number.

10211111022021 is a deficient number, since it is larger than the sum of its proper divisors (6757694087739).

10211111022021 is a wasteful number, since it uses less digits than its factorization.

10211111022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473460065.

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

Adding to 10211111022021 its reverse (12022011111201), we get a palindrome (22233122133222).

The spelling of 10211111022021 in words is "ten trillion, two hundred eleven billion, one hundred eleven million, twenty-two thousand, twenty-one".