1135421225021 has 2 divisors, whose sum is σ = 1135421225022. Its totient is φ = 1135421225020.

The previous prime is 1135421224967. The next prime is 1135421225033. The reversal of 1135421225021 is 1205221245311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 860571628900 + 274849596121 = 927670^2 + 524261^2 .

It is a cyclic number.

It is not a de Polignac number, because 1135421225021 - 2¹⁸ = 1135420962877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1135421227021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567710612510 + 567710612511.

It is an arithmetic number, because the mean of its divisors is an integer number (567710612511).

Almost surely, 2^{1135421225021} is an apocalyptic number.

It is an amenable number.

1135421225021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1135421225021 is an equidigital number, since it uses as much as digits as its factorization.

1135421225021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 1135421225021 in words is "one trillion, one hundred thirty-five billion, four hundred twenty-one million, two hundred twenty-five thousand, twenty-one".