1220038245091 has 2 divisors, whose sum is σ = 1220038245092. Its totient is φ = 1220038245090.

The previous prime is 1220038245061. The next prime is 1220038245133. The reversal of 1220038245091 is 1905428300221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220038245091 - 2⁵ = 1220038245059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220038245091.

It is not a weakly prime, because it can be changed into another prime (1220038245011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610019122545 + 610019122546.

It is an arithmetic number, because the mean of its divisors is an integer number (610019122546).

Almost surely, 2^{1220038245091} is an apocalyptic number.

1220038245091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220038245091 is an equidigital number, since it uses as much as digits as its factorization.

1220038245091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 1220038245091 in words is "one trillion, two hundred twenty billion, thirty-eight million, two hundred forty-five thousand, ninety-one".