401154422221320 has 128 divisors (see below), whose sum is σ = 1275326927280000. Its totient is φ = 100766571960320.

The previous prime is 401154422221309. The next prime is 401154422221321. The reversal of 401154422221320 is 23122224451104.

It is not an unprimeable number, because it can be changed into a prime (401154422221321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1405640970 + ... + 1405926329.

It is an arithmetic number, because the mean of its divisors is an integer number (9963491619375).

Almost surely, 2^{401154422221320} is an apocalyptic number.

401154422221320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401154422221320 is an abundant number, since it is smaller than the sum of its proper divisors (874172505058680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401154422221320 is a wasteful number, since it uses less digits than its factorization.

401154422221320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811567383 (or 2811567379 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

Adding to 401154422221320 its reverse (23122224451104), we get a palindrome (424276646672424).

The spelling of 401154422221320 in words is "four hundred one trillion, one hundred fifty-four billion, four hundred twenty-two million, two hundred twenty-one thousand, three hundred twenty".