10221051276678 has 64 divisors (see below), whose sum is σ = 22477436485632. Its totient is φ = 3072713323680.

The previous prime is 10221051276677. The next prime is 10221051276679. The reversal of 10221051276678 is 87667215012201.

It is an interprime number because it is at equal distance from previous prime (10221051276677) and next prime (10221051276679).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221051276671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206365225 + ... + 206414747.

It is an arithmetic number, because the mean of its divisors is an integer number (351209945088).

Almost surely, 2^{10221051276678} is an apocalyptic number.

10221051276678 is an abundant number, since it is smaller than the sum of its proper divisors (12256385208954).

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

10221051276678 is a wasteful number, since it uses less digits than its factorization.

10221051276678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74289.

The product of its (nonzero) digits is 564480, while the sum is 48.

Adding to 10221051276678 its reverse (87667215012201), we get a palindrome (97888266288879).

The spelling of 10221051276678 in words is "ten trillion, two hundred twenty-one billion, fifty-one million, two hundred seventy-six thousand, six hundred seventy-eight".