1020022220149 has 2 divisors, whose sum is σ = 1020022220150. Its totient is φ = 1020022220148.

The previous prime is 1020022220123. The next prime is 1020022220227. The reversal of 1020022220149 is 9410222200201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 549350757124 + 470671463025 = 741182^2 + 686055^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020022220149 - 2¹¹ = 1020022218101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020022220249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510011110074 + 510011110075.

It is an arithmetic number, because the mean of its divisors is an integer number (510011110075).

Almost surely, 2^{1020022220149} is an apocalyptic number.

It is an amenable number.

1020022220149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020022220149 is an equidigital number, since it uses as much as digits as its factorization.

1020022220149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 1020022220149 in words is "one trillion, twenty billion, twenty-two million, two hundred twenty thousand, one hundred forty-nine".