220401223140 has 48 divisors (see below), whose sum is σ = 705283915392. Its totient is φ = 50377422336.

The previous prime is 220401223123. The next prime is 220401223267. The reversal of 220401223140 is 41322104022.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 262381989 + ... + 262382828.

It is an arithmetic number, because the mean of its divisors is an integer number (14693414904).

Almost surely, 2^220401223140 is an apocalyptic number.

220401223140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220401223140 is an abundant number, since it is smaller than the sum of its proper divisors (484882692252).

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

220401223140 is a wasteful number, since it uses less digits than its factorization.

220401223140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524764836 (or 524764834 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 220401223140 its reverse (41322104022), we get a palindrome (261723327162).

The spelling of 220401223140 in words is "two hundred twenty billion, four hundred one million, two hundred twenty-three thousand, one hundred forty".