1222020022201 has 4 divisors (see below), whose sum is σ = 1333112751504. Its totient is φ = 1110927292900.

The previous prime is 1222020022163. The next prime is 1222020022247. The reversal of 1222020022201 is 1022200202221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1222020022201 - 2³⁵ = 1187660283833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222020022271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55546364635 + ... + 55546364656.

It is an arithmetic number, because the mean of its divisors is an integer number (333278187876).

Almost surely, 2^{1222020022201} is an apocalyptic number.

1222020022201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1222020022201 is a deficient number, since it is larger than the sum of its proper divisors (111092729303).

1222020022201 is a wasteful number, since it uses less digits than its factorization.

1222020022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111092729302.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1222020022201 its reverse (1022200202221), we get a palindrome (2244220224422).

The spelling of 1222020022201 in words is "one trillion, two hundred twenty-two billion, twenty million, twenty-two thousand, two hundred one".