1220410254251 has 8 divisors (see below), whose sum is σ = 1223990245104. Its totient is φ = 1216830625920.

The previous prime is 1220410254169. The next prime is 1220410254311. The reversal of 1220410254251 is 1524520140221.

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 1220410254251 - 2¹⁴ = 1220410237867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220410259251) 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, 7607711 + ... + 7766471.

It is an arithmetic number, because the mean of its divisors is an integer number (152998780638).

Almost surely, 2^{1220410254251} is an apocalyptic number.

1220410254251 is a deficient number, since it is larger than the sum of its proper divisors (3579990853).

1220410254251 is a wasteful number, since it uses less digits than its factorization.

1220410254251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181261.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 1220410254251 its reverse (1524520140221), we get a palindrome (2744930394472).

The spelling of 1220410254251 in words is "one trillion, two hundred twenty billion, four hundred ten million, two hundred fifty-four thousand, two hundred fifty-one".