102215051 has 2 divisors, whose sum is σ = 102215052. Its totient is φ = 102215050.

The previous prime is 102215039. The next prime is 102215063. The reversal of 102215051 is 150512201.

It is a balanced prime because it is at equal distance from previous prime (102215039) and next prime (102215063).

It is a cyclic number.

It is not a de Polignac number, because 102215051 - 2¹⁴ = 102198667 is a prime.

It is not a weakly prime, because it can be changed into another prime (102215021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51107525 + 51107526.

It is an arithmetic number, because the mean of its divisors is an integer number (51107526).

Almost surely, 2^102215051 is an apocalyptic number.

102215051 is a deficient number, since it is larger than the sum of its proper divisors (1).

102215051 is an equidigital number, since it uses as much as digits as its factorization.

102215051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 102215051 is about 10110.1459435559. The cubic root of 102215051 is about 467.5610047455.

Adding to 102215051 its reverse (150512201), we get a palindrome (252727252).

It can be divided in two parts, 1022150 and 51, that added together give a palindrome (1022201).

The spelling of 102215051 in words is "one hundred two million, two hundred fifteen thousand, fifty-one".