1122010101 has 6 divisors (see below), whose sum is σ = 1620681270. Its totient is φ = 748006728.

The previous prime is 1122010093. The next prime is 1122010103. The reversal of 1122010101 is 1010102211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 664092900 + 457917201 = 25770^2 + 21399^2 .

It is not a de Polignac number, because 1122010101 - 2³ = 1122010093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 124667789 = 1122010101 / (1 + 1 + 2 + 2 + 0 + 1 + 0 + 1 + 0 + 1).

1122010101 is a modest number, since divided by 10101 gives 1122 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122010103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62333886 + ... + 62333903.

It is an arithmetic number, because the mean of its divisors is an integer number (270113545).

Almost surely, 2^1122010101 is an apocalyptic number.

It is an amenable number.

1122010101 is a deficient number, since it is larger than the sum of its proper divisors (498671169).

1122010101 is a wasteful number, since it uses less digits than its factorization.

1122010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124667795 (or 124667792 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1122010101 is about 33496.4192265382. The cubic root of 1122010101 is about 1039.1197251123.

Adding to 1122010101 its reverse (1010102211), we get a palindrome (2132112312).

It can be divided in two parts, 11220 and 10101, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 1122010101 in words is "one billion, one hundred twenty-two million, ten thousand, one hundred one".