1012022101 has 2 divisors, whose sum is σ = 1012022102. Its totient is φ = 1012022100.

The previous prime is 1012022059. The next prime is 1012022119. The reversal of 1012022101 is 1012202101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 741255076 + 270767025 = 27226^2 + 16455^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012022101 - 2⁷ = 1012021973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012022131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506011050 + 506011051.

It is an arithmetic number, because the mean of its divisors is an integer number (506011051).

Almost surely, 2^1012022101 is an apocalyptic number.

It is an amenable number.

1012022101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012022101 is an equidigital number, since it uses as much as digits as its factorization.

1012022101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1012022101 is about 31812.2948087685. The cubic root of 1012022101 is about 1003.9914144147.

Adding to 1012022101 its reverse (1012202101), we get a palindrome (2024224202).

It can be divided in two parts, 101 and 2022101, that added together give a palindrome (2022202).

The spelling of 1012022101 in words is "one billion, twelve million, twenty-two thousand, one hundred one".