222101101201021 has 16 divisors (see below), whose sum is σ = 267189710440960. Its totient is φ = 180352493267760.

The previous prime is 222101101201019. The next prime is 222101101201027. The reversal of 222101101201021 is 120102101101222.

It is a cyclic number.

It is not a de Polignac number, because 222101101201021 - 2¹ = 222101101201019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222101101200986 and 222101101201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222101101201027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154170970 + ... + 155604916.

It is an arithmetic number, because the mean of its divisors is an integer number (16699356902560).

Almost surely, 2^{222101101201021} is an apocalyptic number.

It is an amenable number.

222101101201021 is a deficient number, since it is larger than the sum of its proper divisors (45088609239939).

222101101201021 is a wasteful number, since it uses less digits than its factorization.

222101101201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598544.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 222101101201021 its reverse (120102101101222), we get a palindrome (342203202302243).

The spelling of 222101101201021 in words is "two hundred twenty-two trillion, one hundred one billion, one hundred one million, two hundred one thousand, twenty-one".