1201213300221 has 24 divisors (see below), whose sum is σ = 1975117525056. Its totient is φ = 696355535040.

The previous prime is 1201213300139. The next prime is 1201213300279. The reversal of 1201213300221 is 1220033121021.

1201213300221 is a `hidden beast` number, since 1 + 20 + 121 + 3 + 300 + 221 = 666.

It is not a de Polignac number, because 1201213300221 - 2³⁴ = 1184033431037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201213300194 and 1201213300203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201213300291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 263768760 + ... + 263773313.

It is an arithmetic number, because the mean of its divisors is an integer number (82296563544).

Almost surely, 2^{1201213300221} is an apocalyptic number.

1201213300221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1201213300221 is a deficient number, since it is larger than the sum of its proper divisors (773904224835).

1201213300221 is a wasteful number, since it uses less digits than its factorization.

1201213300221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527542113 (or 527542110 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1201213300221 its reverse (1220033121021), we get a palindrome (2421246421242).

The spelling of 1201213300221 in words is "one trillion, two hundred one billion, two hundred thirteen million, three hundred thousand, two hundred twenty-one".