4021221012308 has 24 divisors (see below), whose sum is σ = 7048096787424. Its totient is φ = 2007480736800.

The previous prime is 4021221012307. The next prime is 4021221012311. The reversal of 4021221012308 is 8032101221204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021221012307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9550691 + ... + 9962837.

It is an arithmetic number, because the mean of its divisors is an integer number (293670699476).

Almost surely, 2^{4021221012308} is an apocalyptic number.

It is an amenable number.

4021221012308 is a deficient number, since it is larger than the sum of its proper divisors (3026875775116).

4021221012308 is a wasteful number, since it uses less digits than its factorization.

4021221012308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415943 (or 415941 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The spelling of 4021221012308 in words is "four trillion, twenty-one billion, two hundred twenty-one million, twelve thousand, three hundred eight".