1041220401 has 16 divisors (see below), whose sum is σ = 1517404224. Its totient is φ = 631185984.

The previous prime is 1041220399. The next prime is 1041220409. The reversal of 1041220401 is 1040221401.

It is not a de Polignac number, because 1041220401 - 2¹ = 1041220399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1041220409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196626 + ... + 201851.

It is an arithmetic number, because the mean of its divisors is an integer number (94837764).

Almost surely, 2^1041220401 is an apocalyptic number.

It is an amenable number.

1041220401 is a deficient number, since it is larger than the sum of its proper divisors (476183823).

1041220401 is a wasteful number, since it uses less digits than its factorization.

1041220401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398560.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1041220401 is about 32267.9469597928. The cubic root of 1041220401 is about 1013.5555504285. Note that the first 5 decimals are identical.

Adding to 1041220401 its reverse (1040221401), we get a palindrome (2081441802).

The spelling of 1041220401 in words is "one billion, forty-one million, two hundred twenty thousand, four hundred one".