22201021212241 has 2 divisors, whose sum is σ = 22201021212242. Its totient is φ = 22201021212240.

The previous prime is 22201021212211. The next prime is 22201021212281. The reversal of 22201021212241 is 14221212010222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21008838931600 + 1192182280641 = 4583540^2 + 1091871^2 .

It is a cyclic number.

It is not a de Polignac number, because 22201021212241 - 2²¹ = 22201019115089 is a prime.

It is not a weakly prime, because it can be changed into another prime (22201021212211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11100510606120 + 11100510606121.

It is an arithmetic number, because the mean of its divisors is an integer number (11100510606121).

Almost surely, 2^{22201021212241} is an apocalyptic number.

It is an amenable number.

22201021212241 is a deficient number, since it is larger than the sum of its proper divisors (1).

22201021212241 is an equidigital number, since it uses as much as digits as its factorization.

22201021212241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 22201021212241 its reverse (14221212010222), we get a palindrome (36422233222463).

It can be divided in two parts, 2220102 and 1212241, that added together give a palindrome (3432343).

The spelling of 22201021212241 in words is "twenty-two trillion, two hundred one billion, twenty-one million, two hundred twelve thousand, two hundred forty-one".