1220020001149 has 2 divisors, whose sum is σ = 1220020001150. Its totient is φ = 1220020001148.

The previous prime is 1220020001141. The next prime is 1220020001173. The reversal of 1220020001149 is 9411000200221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 830207078649 + 389812922500 = 911157^2 + 624350^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220020001149 - 2³ = 1220020001141 is a prime.

It is a super-2 number, since 2×1220020001149² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220020001141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610010000574 + 610010000575.

It is an arithmetic number, because the mean of its divisors is an integer number (610010000575).

Almost surely, 2^{1220020001149} is an apocalyptic number.

It is an amenable number.

1220020001149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220020001149 is an equidigital number, since it uses as much as digits as its factorization.

1220020001149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 1220020001149 in words is "one trillion, two hundred twenty billion, twenty million, one thousand, one hundred forty-nine".