1220534452121 has 8 divisors (see below), whose sum is σ = 1225431429600. Its totient is φ = 1215641588832.

The previous prime is 1220534452103. The next prime is 1220534452169. The reversal of 1220534452121 is 1212544350221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220534452121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220534452021) 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, 433340 + ... + 1621373.

It is an arithmetic number, because the mean of its divisors is an integer number (153178928700).

Almost surely, 2^{1220534452121} is an apocalyptic number.

It is an amenable number.

1220534452121 is a deficient number, since it is larger than the sum of its proper divisors (4896977479).

1220534452121 is a wasteful number, since it uses less digits than its factorization.

1220534452121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057095.

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 1220534452121 in words is "one trillion, two hundred twenty billion, five hundred thirty-four million, four hundred fifty-two thousand, one hundred twenty-one".