2121022201927 has 2 divisors, whose sum is σ = 2121022201928. Its totient is φ = 2121022201926.

The previous prime is 2121022201913. The next prime is 2121022202081. The reversal of 2121022201927 is 7291022201212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121022201927 - 2¹⁹ = 2121021677639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121022201027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060511100963 + 1060511100964.

It is an arithmetic number, because the mean of its divisors is an integer number (1060511100964).

Almost surely, 2^{2121022201927} is an apocalyptic number.

2121022201927 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121022201927 is an equidigital number, since it uses as much as digits as its factorization.

2121022201927 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 2121022201927 in words is "two trillion, one hundred twenty-one billion, twenty-two million, two hundred one thousand, nine hundred twenty-seven".