214021121401 has 12 divisors (see below), whose sum is σ = 224239371300. Its totient is φ = 204025200288.

The previous prime is 214021121387. The next prime is 214021121429. The reversal of 214021121401 is 104121120412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 112409996176 + 101611125225 = 335276^2 + 318765^2 .

It is not a de Polignac number, because 214021121401 - 2³⁷ = 76582167929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214021121441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 410266 + ... + 772243.

It is an arithmetic number, because the mean of its divisors is an integer number (18686614275).

Almost surely, 2^214021121401 is an apocalyptic number.

It is an amenable number.

214021121401 is a deficient number, since it is larger than the sum of its proper divisors (10218249899).

214021121401 is an equidigital number, since it uses as much as digits as its factorization.

214021121401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182696 (or 1182617 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 214021121401 its reverse (104121120412), we get a palindrome (318142241813).

It can be divided in two parts, 2140211 and 21401, that added together give a palindrome (2161612).

The spelling of 214021121401 in words is "two hundred fourteen billion, twenty-one million, one hundred twenty-one thousand, four hundred one".