10211220021021 has 16 divisors (see below), whose sum is σ = 13931783230464. Its totient is φ = 6649072872624.

The previous prime is 10211220020951. The next prime is 10211220021031. The reversal of 10211220021021 is 12012002211201.

10211220021021 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 10211220021021 - 2¹⁰ = 10211220019997 is a prime.

It is a super-2 number, since 2×10211220021021² (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 (10211220021031) 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, 9311350 + ... + 10350056.

It is an arithmetic number, because the mean of its divisors is an integer number (870736451904).

Almost surely, 2^{10211220021021} is an apocalyptic number.

It is an amenable number.

10211220021021 is a deficient number, since it is larger than the sum of its proper divisors (3720563209443).

10211220021021 is a wasteful number, since it uses less digits than its factorization.

10211220021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114960.

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

Adding to 10211220021021 its reverse (12012002211201), we get a palindrome (22223222232222).

The spelling of 10211220021021 in words is "ten trillion, two hundred eleven billion, two hundred twenty million, twenty-one thousand, twenty-one".