1061022421 has 2 divisors, whose sum is σ = 1061022422. Its totient is φ = 1061022420.

The previous prime is 1061022419. The next prime is 1061022433. The reversal of 1061022421 is 1242201601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1037741796 + 23280625 = 32214^2 + 4825^2 .

It is an emirp because it is prime and its reverse (1242201601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1061022421 - 2¹ = 1061022419 is a prime.

It is a super-2 number, since 2×1061022421² = 2251537155729402482, which contains 22 as substring.

Together with 1061022419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1061022401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530511210 + 530511211.

It is an arithmetic number, because the mean of its divisors is an integer number (530511211).

Almost surely, 2^1061022421 is an apocalyptic number.

It is an amenable number.

1061022421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061022421 is an equidigital number, since it uses as much as digits as its factorization.

1061022421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1061022421 is about 32573.3391134529. The cubic root of 1061022421 is about 1019.9405389534.

The spelling of 1061022421 in words is "one billion, sixty-one million, twenty-two thousand, four hundred twenty-one".