121210220022139 has 2 divisors, whose sum is σ = 121210220022140. Its totient is φ = 121210220022138.

The previous prime is 121210220022113. The next prime is 121210220022253. The reversal of 121210220022139 is 931220022012121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121210220022139 - 2²³ = 121210211633531 is a prime.

It is a super-2 number, since 2×121210220022139² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121210220022739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605110011069 + 60605110011070.

It is an arithmetic number, because the mean of its divisors is an integer number (60605110011070).

Almost surely, 2^{121210220022139} is an apocalyptic number.

121210220022139 is a deficient number, since it is larger than the sum of its proper divisors (1).

121210220022139 is an equidigital number, since it uses as much as digits as its factorization.

121210220022139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 121210220022139 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred twenty million, twenty-two thousand, one hundred thirty-nine".