201012022201221 has 96 divisors (see below), whose sum is σ = 362738513719296. Its totient is φ = 104207659920000.

The previous prime is 201012022201217. The next prime is 201012022201231. The reversal of 201012022201221 is 122102220210102.

It is a happy number.

201012022201221 is a `hidden beast` number, since 20 + 1 + 0 + 1 + 202 + 220 + 1 + 221 = 666.

201012022201221 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201012022201221 - 2² = 201012022201217 is a prime.

It is a super-4 number, since 4×201012022201221⁴ (a number of 58 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201012022201194 and 201012022201203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012022201231) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1348085571 + ... + 1348234671.

It is an arithmetic number, because the mean of its divisors is an integer number (3778526184576).

Almost surely, 2^{201012022201221} is an apocalyptic number.

201012022201221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201012022201221 is a deficient number, since it is larger than the sum of its proper divisors (161726491518075).

201012022201221 is a wasteful number, since it uses less digits than its factorization.

201012022201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153103 (or 153100 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 201012022201221 its reverse (122102220210102), we get a palindrome (323114242411323).

The spelling of 201012022201221 in words is "two hundred one trillion, twelve billion, twenty-two million, two hundred one thousand, two hundred twenty-one".