2100210121147 has 2 divisors, whose sum is σ = 2100210121148. Its totient is φ = 2100210121146.

The previous prime is 2100210121123. The next prime is 2100210121171. The reversal of 2100210121147 is 7411210120012.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (2100210121123) and next prime (2100210121171).

It is a cyclic number.

It is not a de Polignac number, because 2100210121147 - 2⁷ = 2100210121019 is a prime.

It is not a weakly prime, because it can be changed into another prime (2100213121147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050105060573 + 1050105060574.

It is an arithmetic number, because the mean of its divisors is an integer number (1050105060574).

Almost surely, 2^{2100210121147} is an apocalyptic number.

2100210121147 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100210121147 is an equidigital number, since it uses as much as digits as its factorization.

2100210121147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 2100210121147 its reverse (7411210120012), we get a palindrome (9511420241159).

The spelling of 2100210121147 in words is "two trillion, one hundred billion, two hundred ten million, one hundred twenty-one thousand, one hundred forty-seven".