10012221221012 has 12 divisors (see below), whose sum is σ = 17551753496340. Its totient is φ = 4997434507776.

The previous prime is 10012221220997. The next prime is 10012221221021. The reversal of 10012221221012 is 21012212221001.

It can be written as a sum of positive squares in 2 ways, for example, as 9855606324496 + 156614896516 = 3139364^2 + 395746^2 .

It is a congruent number.

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, 2169023087 + ... + 2169027702.

It is an arithmetic number, because the mean of its divisors is an integer number (1462646124695).

Almost surely, 2^{10012221221012} is an apocalyptic number.

It is an amenable number.

10012221221012 is a deficient number, since it is larger than the sum of its proper divisors (7539532275328).

10012221221012 is a wasteful number, since it uses less digits than its factorization.

10012221221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4338051370 (or 4338051368 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10012221221012 its reverse (21012212221001), we get a palindrome (31024433442013).

The spelling of 10012221221012 in words is "ten trillion, twelve billion, two hundred twenty-one million, two hundred twenty-one thousand, twelve".