1220002250455 has 32 divisors (see below), whose sum is σ = 1537479014400. Its totient is φ = 928124630400.

The previous prime is 1220002250443. The next prime is 1220002250479. The reversal of 1220002250455 is 5540522000221.

It is a de Polignac number, because none of the positive numbers 2^k-1220002250455 is a prime.

It is a super-2 number, since 2×1220002250455² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23119641 + ... + 23172349.

It is an arithmetic number, because the mean of its divisors is an integer number (48046219200).

Almost surely, 2^{1220002250455} is an apocalyptic number.

1220002250455 is a deficient number, since it is larger than the sum of its proper divisors (317476763945).

1220002250455 is a wasteful number, since it uses less digits than its factorization.

1220002250455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55335.

The product of its (nonzero) digits is 8000, while the sum is 28.

Adding to 1220002250455 its reverse (5540522000221), we get a palindrome (6760524250676).

The spelling of 1220002250455 in words is "one trillion, two hundred twenty billion, two million, two hundred fifty thousand, four hundred fifty-five".