222210010001021 has 16 divisors (see below), whose sum is σ = 256883024088960. Its totient is φ = 188275270708800.

The previous prime is 222210010000969. The next prime is 222210010001027. The reversal of 222210010001021 is 120100010012222.

It is a cyclic number.

It is not a de Polignac number, because 222210010001021 - 2¹⁰ = 222210009999997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222210010000987 and 222210010001005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222210010001027) 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, 253439486 + ... + 254314751.

It is an arithmetic number, because the mean of its divisors is an integer number (16055189005560).

Almost surely, 2^{222210010001021} is an apocalyptic number.

It is an amenable number.

222210010001021 is a deficient number, since it is larger than the sum of its proper divisors (34673014087939).

222210010001021 is a wasteful number, since it uses less digits than its factorization.

222210010001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507754964.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 222210010001021 its reverse (120100010012222), we get a palindrome (342310020013243).

The spelling of 222210010001021 in words is "two hundred twenty-two trillion, two hundred ten billion, ten million, one thousand, twenty-one".