121214320979 has 2 divisors, whose sum is σ = 121214320980. Its totient is φ = 121214320978.

The previous prime is 121214320967. The next prime is 121214321027. The reversal of 121214320979 is 979023412121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121214320979 is a prime.

It is a super-2 number, since 2×121214320979² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121214320679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60607160489 + 60607160490.

It is an arithmetic number, because the mean of its divisors is an integer number (60607160490).

Almost surely, 2^121214320979 is an apocalyptic number.

121214320979 is a deficient number, since it is larger than the sum of its proper divisors (1).

121214320979 is an equidigital number, since it uses as much as digits as its factorization.

121214320979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 121214320979 in words is "one hundred twenty-one billion, two hundred fourteen million, three hundred twenty thousand, nine hundred seventy-nine".