210121444132 has 12 divisors (see below), whose sum is σ = 368157167280. Its totient is φ = 104933682056.

The previous prime is 210121444129. The next prime is 210121444147. The reversal of 210121444132 is 231444121012.

It is a junction number, because it is equal to n+sod(n) for n = 210121444097 and 210121444106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31756282 + ... + 31762897.

It is an arithmetic number, because the mean of its divisors is an integer number (30679763940).

Almost surely, 2^210121444132 is an apocalyptic number.

It is an amenable number.

210121444132 is a deficient number, since it is larger than the sum of its proper divisors (158035723148).

210121444132 is a wasteful number, since it uses less digits than its factorization.

210121444132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63520010 (or 63520008 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 210121444132 its reverse (231444121012), we get a palindrome (441565565144).

The spelling of 210121444132 in words is "two hundred ten billion, one hundred twenty-one million, four hundred forty-four thousand, one hundred thirty-two".