1222202021101 has 4 divisors (see below), whose sum is σ = 1228343740000. Its totient is φ = 1216060302204.

The previous prime is 1222202021077. The next prime is 1222202021123. The reversal of 1222202021101 is 1011202022221.

It is a happy number.

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 1222202021101 - 2¹⁵ = 1222201988333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222202021141) 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, 3070859151 + ... + 3070859548.

It is an arithmetic number, because the mean of its divisors is an integer number (307085935000).

Almost surely, 2^{1222202021101} is an apocalyptic number.

It is an amenable number.

1222202021101 is a deficient number, since it is larger than the sum of its proper divisors (6141718899).

1222202021101 is an equidigital number, since it uses as much as digits as its factorization.

1222202021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6141718898.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1222202021101 its reverse (1011202022221), we get a palindrome (2233404043322).

The spelling of 1222202021101 in words is "one trillion, two hundred twenty-two billion, two hundred two million, twenty-one thousand, one hundred one".