401022400120 has 16 divisors (see below), whose sum is σ = 902300400360. Its totient is φ = 160408960032.

The previous prime is 401022400069. The next prime is 401022400123. The reversal of 401022400120 is 21004220104.

It is a junction number, because it is equal to n+sod(n) for n = 401022400094 and 401022400103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401022400123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5012779962 + ... + 5012780041.

Almost surely, 2^401022400120 is an apocalyptic number.

401022400120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401022400120 is an abundant number, since it is smaller than the sum of its proper divisors (501278000240).

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

401022400120 is a wasteful number, since it uses less digits than its factorization.

401022400120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10025560014 (or 10025560010 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 401022400120 its reverse (21004220104), we get a palindrome (422026620224).

The spelling of 401022400120 in words is "four hundred one billion, twenty-two million, four hundred thousand, one hundred twenty".