10021210220021 has 32 divisors (see below), whose sum is σ = 13585683191808. Its totient is φ = 7138082024640.

The previous prime is 10021210219973. The next prime is 10021210220029. The reversal of 10021210220021 is 12002201212001.

It is not a de Polignac number, because 10021210220021 - 2¹⁴ = 10021210203637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10021210219978 and 10021210220005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021210220029) 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, 48494951 + ... + 48701156.

It is an arithmetic number, because the mean of its divisors is an integer number (424552599744).

Almost surely, 2^{10021210220021} is an apocalyptic number.

10021210220021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10021210220021 is a deficient number, since it is larger than the sum of its proper divisors (3564472971787).

10021210220021 is a wasteful number, since it uses less digits than its factorization.

10021210220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97196241.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10021210220021 its reverse (12002201212001), we get a palindrome (22023411432022).

The spelling of 10021210220021 in words is "ten trillion, twenty-one billion, two hundred ten million, two hundred twenty thousand, twenty-one".