1212022221479 has 2 divisors, whose sum is σ = 1212022221480. Its totient is φ = 1212022221478.

The previous prime is 1212022221437. The next prime is 1212022221491. The reversal of 1212022221479 is 9741222202121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212022221479 - 2¹⁶ = 1212022155943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212022221679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606011110739 + 606011110740.

It is an arithmetic number, because the mean of its divisors is an integer number (606011110740).

Almost surely, 2^{1212022221479} is an apocalyptic number.

1212022221479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212022221479 is an equidigital number, since it uses as much as digits as its factorization.

1212022221479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 1212022221479 in words is "one trillion, two hundred twelve billion, twenty-two million, two hundred twenty-one thousand, four hundred seventy-nine".