2102121022007 has 2 divisors, whose sum is σ = 2102121022008. Its totient is φ = 2102121022006.

The previous prime is 2102121021943. The next prime is 2102121022159. The reversal of 2102121022007 is 7002201212012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102121022007 - 2⁶ = 2102121021943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2102121022007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102121012007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051060511003 + 1051060511004.

It is an arithmetic number, because the mean of its divisors is an integer number (1051060511004).

Almost surely, 2^{2102121022007} is an apocalyptic number.

2102121022007 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102121022007 is an equidigital number, since it uses as much as digits as its factorization.

2102121022007 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 20.

Adding to 2102121022007 its reverse (7002201212012), we get a palindrome (9104322234019).

The spelling of 2102121022007 in words is "two trillion, one hundred two billion, one hundred twenty-one million, twenty-two thousand, seven".