1222026202221 has 48 divisors (see below), whose sum is σ = 1820090248704. Its totient is φ = 728619892000.

The previous prime is 1222026202183. The next prime is 1222026202237.

It is a happy number.

1222026202221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1222026202221 - 2²¹ = 1222024105069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222026202191 and 1222026202200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222026202261) 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 47 ways as a sum of consecutive naturals, for example, 11985226 + ... + 12086756.

It is an arithmetic number, because the mean of its divisors is an integer number (37918546848).

Almost surely, 2^{1222026202221} is an apocalyptic number.

1222026202221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1222026202221 is a deficient number, since it is larger than the sum of its proper divisors (598064046483).

1222026202221 is a wasteful number, since it uses less digits than its factorization.

1222026202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102094 (or 102083 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The spelling of 1222026202221 in words is "one trillion, two hundred twenty-two billion, twenty-six million, two hundred two thousand, two hundred twenty-one".