2120121011927 has 2 divisors, whose sum is σ = 2120121011928. Its totient is φ = 2120121011926.

The previous prime is 2120121011881. The next prime is 2120121011993. The reversal of 2120121011927 is 7291101210212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2120121011927 - 2⁶ = 2120121011863 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2120121011927.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120121011027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060060505963 + 1060060505964.

It is an arithmetic number, because the mean of its divisors is an integer number (1060060505964).

Almost surely, 2^{2120121011927} is an apocalyptic number.

2120121011927 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120121011927 is an equidigital number, since it uses as much as digits as its factorization.

2120121011927 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 29.

The spelling of 2120121011927 in words is "two trillion, one hundred twenty billion, one hundred twenty-one million, eleven thousand, nine hundred twenty-seven".