201001020110021 has 8 divisors (see below), whose sum is σ = 201151900554240. Its totient is φ = 200850156924912.

The previous prime is 201001020109973. The next prime is 201001020110047. The reversal of 201001020110021 is 120011020100102.

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

It is a cyclic number.

It is not a de Polignac number, because 201001020110021 - 2¹⁸ = 201001019847877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201001020109984 and 201001020110011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201001020118021) 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, 19033520 + ... + 27645558.

It is an arithmetic number, because the mean of its divisors is an integer number (25143987569280).

Almost surely, 2^{201001020110021} is an apocalyptic number.

It is an amenable number.

201001020110021 is a deficient number, since it is larger than the sum of its proper divisors (150880444219).

201001020110021 is a wasteful number, since it uses less digits than its factorization.

201001020110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8629555.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201001020110021 its reverse (120011020100102), we get a palindrome (321012040210123).

The spelling of 201001020110021 in words is "two hundred one trillion, one billion, twenty million, one hundred ten thousand, twenty-one".