1221222201133 has 8 divisors (see below), whose sum is σ = 1332250583616. Its totient is φ = 1110195182400.

The previous prime is 1221222201131. The next prime is 1221222201137. The reversal of 1221222201133 is 3311022221221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1221222201133 - 2¹ = 1221222201131 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 (1221222201131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2749360 + ... + 3162502.

It is an arithmetic number, because the mean of its divisors is an integer number (166531322952).

Almost surely, 2^{1221222201133} is an apocalyptic number.

It is an amenable number.

1221222201133 is a deficient number, since it is larger than the sum of its proper divisors (111028382483).

1221222201133 is a wasteful number, since it uses less digits than its factorization.

1221222201133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681875.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1221222201133 its reverse (3311022221221), we get a palindrome (4532244422354).

The spelling of 1221222201133 in words is "one trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred one thousand, one hundred thirty-three".