201012112211021 has 4 divisors (see below), whose sum is σ = 201014500661952. Its totient is φ = 201009723760092.

The previous prime is 201012112210991. The next prime is 201012112211051. The reversal of 201012112211021 is 120112211210102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (201012112210991) and next prime (201012112211051).

It is a cyclic number.

It is not a de Polignac number, because 201012112211021 - 2¹⁸ = 201012111948877 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 (201012112211051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1194099221 + ... + 1194267546.

It is an arithmetic number, because the mean of its divisors is an integer number (50253625165488).

Almost surely, 2^{201012112211021} is an apocalyptic number.

It is an amenable number.

201012112211021 is a deficient number, since it is larger than the sum of its proper divisors (2388450931).

201012112211021 is an equidigital number, since it uses as much as digits as its factorization.

201012112211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388450930.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201012112211021 its reverse (120112211210102), we get a palindrome (321124323421123).

The spelling of 201012112211021 in words is "two hundred one trillion, twelve billion, one hundred twelve million, two hundred eleven thousand, twenty-one".