222011210200021 has 32 divisors (see below), whose sum is σ = 244694420467200. Its totient is φ = 199757874146880.

The previous prime is 222011210200007. The next prime is 222011210200027. The reversal of 222011210200021 is 120002012110222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 222011210200021 - 2²¹ = 222011208102869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222011210199968 and 222011210200004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222011210200027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 376530186 + ... + 377119348.

It is an arithmetic number, because the mean of its divisors is an integer number (7646700639600).

Almost surely, 2^{222011210200021} is an apocalyptic number.

It is an amenable number.

222011210200021 is a deficient number, since it is larger than the sum of its proper divisors (22683210267179).

222011210200021 is a wasteful number, since it uses less digits than its factorization.

222011210200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590289.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222011210200021 its reverse (120002012110222), we get a palindrome (342013222310243).

The spelling of 222011210200021 in words is "two hundred twenty-two trillion, eleven billion, two hundred ten million, two hundred thousand, twenty-one".