201012022111221 has 8 divisors (see below), whose sum is σ = 297795588312960. Its totient is φ = 134008014740796.

The previous prime is 201012022111171. The next prime is 201012022111231. The reversal of 201012022111221 is 122111220210102.

201012022111221 is a `hidden beast` number, since 20 + 10 + 1 + 202 + 211 + 1 + 221 = 666.

It is not a de Polignac number, because 201012022111221 - 2¹⁸ = 201012021849077 is a prime.

It is a super-2 number, since 2×201012022111221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201012022111194 and 201012022111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012022111231) 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, 3722444853885 + ... + 3722444853938.

It is an arithmetic number, because the mean of its divisors is an integer number (37224448539120).

Almost surely, 2^{201012022111221} is an apocalyptic number.

It is an amenable number.

201012022111221 is a deficient number, since it is larger than the sum of its proper divisors (96783566201739).

201012022111221 is an equidigital number, since it uses as much as digits as its factorization.

201012022111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7444889707832 (or 7444889707826 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201012022111221 its reverse (122111220210102), we get a palindrome (323123242321323).

The spelling of 201012022111221 in words is "two hundred one trillion, twelve billion, twenty-two million, one hundred eleven thousand, two hundred twenty-one".