201012120221021 has 8 divisors (see below), whose sum is σ = 204498521059800. Its totient is φ = 197531884549440.

The previous prime is 201012120220949. The next prime is 201012120221023. The reversal of 201012120221021 is 120122021210102.

201012120221021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 617660815396 + 200394459405625 = 785914^2 + 14156075^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201012120221021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012120221023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1541226026 + ... + 1541356443.

It is an arithmetic number, because the mean of its divisors is an integer number (25562315132475).

Almost surely, 2^{201012120221021} is an apocalyptic number.

It is an amenable number.

201012120221021 is a deficient number, since it is larger than the sum of its proper divisors (3486400838779).

201012120221021 is a wasteful number, since it uses less digits than its factorization.

201012120221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082583599.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201012120221021 its reverse (120122021210102), we get a palindrome (321134141431123).

The spelling of 201012120221021 in words is "two hundred one trillion, twelve billion, one hundred twenty million, two hundred twenty-one thousand, twenty-one".