4012221516 has 24 divisors (see below), whose sum is σ = 9371120304. Its totient is φ = 1336082880.

The previous prime is 4012221509. The next prime is 4012221523. The reversal of 4012221516 is 6151222104.

4012221516 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4012221509) and next prime (4012221523).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152875 + ... + 177186.

It is an arithmetic number, because the mean of its divisors is an integer number (390463346).

Almost surely, 2^4012221516 is an apocalyptic number.

It is an amenable number.

4012221516 is an abundant number, since it is smaller than the sum of its proper divisors (5358898788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4012221516 is a wasteful number, since it uses less digits than its factorization.

4012221516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331081 (or 331079 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 4012221516 is about 63342.0990811009. The cubic root of 4012221516 is about 1589.0161121559.

The spelling of 4012221516 in words is "four billion, twelve million, two hundred twenty-one thousand, five hundred sixteen".