401421012124 has 12 divisors (see below), whose sum is σ = 766349205048. Its totient is φ = 182464096400.

The previous prime is 401421012103. The next prime is 401421012127. The reversal of 401421012124 is 421210124104.

It is a super-2 number, since 2×401421012124² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 401421012095 and 401421012104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401421012127) 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, 4561602367 + ... + 4561602454.

It is an arithmetic number, because the mean of its divisors is an integer number (63862433754).

Almost surely, 2^401421012124 is an apocalyptic number.

401421012124 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

401421012124 is a deficient number, since it is larger than the sum of its proper divisors (364928192924).

401421012124 is a wasteful number, since it uses less digits than its factorization.

401421012124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9123204836 (or 9123204834 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 401421012124 its reverse (421210124104), we get a palindrome (822631136228).

The spelling of 401421012124 in words is "four hundred one billion, four hundred twenty-one million, twelve thousand, one hundred twenty-four".