1222230021001 has 16 divisors (see below), whose sum is σ = 1377966739968. Its totient is φ = 1074014841600.

The previous prime is 1222230020971. The next prime is 1222230021053. The reversal of 1222230021001 is 1001200322221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1222230021001 - 2¹¹ = 1222230018953 is a prime.

It is a super-2 number, since 2×1222230021001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222230021401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1810096 + ... + 2391841.

It is an arithmetic number, because the mean of its divisors is an integer number (86122921248).

Almost surely, 2^{1222230021001} is an apocalyptic number.

1222230021001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1222230021001 is a deficient number, since it is larger than the sum of its proper divisors (155736718967).

1222230021001 is a wasteful number, since it uses less digits than its factorization.

1222230021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4202832.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1222230021001 its reverse (1001200322221), we get a palindrome (2223430343222).

The spelling of 1222230021001 in words is "one trillion, two hundred twenty-two billion, two hundred thirty million, twenty-one thousand, one".