4021221010412 has 48 divisors (see below), whose sum is σ = 7309440082560. Its totient is φ = 1934230015872.

The previous prime is 4021221010403. The next prime is 4021221010451. The reversal of 4021221010412 is 2140101221204.

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, 82130123 + ... + 82179069.

It is an arithmetic number, because the mean of its divisors is an integer number (152280001720).

Almost surely, 2^{4021221010412} is an apocalyptic number.

It is an amenable number.

4021221010412 is a deficient number, since it is larger than the sum of its proper divisors (3288219072148).

4021221010412 is a wasteful number, since it uses less digits than its factorization.

4021221010412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56190 (or 56188 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 4021221010412 its reverse (2140101221204), we get a palindrome (6161322231616).

The spelling of 4021221010412 in words is "four trillion, twenty-one billion, two hundred twenty-one million, ten thousand, four hundred twelve".