1022121020153 has 2 divisors, whose sum is σ = 1022121020154. Its totient is φ = 1022121020152.

The previous prime is 1022121020149. The next prime is 1022121020183. The reversal of 1022121020153 is 3510201212201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 644894120809 + 377226899344 = 803053^2 + 614188^2 .

It is an emirp because it is prime and its reverse (3510201212201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1022121020153 - 2² = 1022121020149 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022121020183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511060510076 + 511060510077.

It is an arithmetic number, because the mean of its divisors is an integer number (511060510077).

Almost surely, 2^{1022121020153} is an apocalyptic number.

It is an amenable number.

1022121020153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022121020153 is an equidigital number, since it uses as much as digits as its factorization.

1022121020153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 1022121020153 its reverse (3510201212201), we get a palindrome (4532322232354).

The spelling of 1022121020153 in words is "one trillion, twenty-two billion, one hundred twenty-one million, twenty thousand, one hundred fifty-three".