101021274 has 24 divisors (see below), whose sum is σ = 220151412. Its totient is φ = 33478080.

The previous prime is 101021273. The next prime is 101021279. The reversal of 101021274 is 472120101.

It can be written as a sum of positive squares in 2 ways, for example, as 75951225 + 25070049 = 8715^2 + 5007^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (101021273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13107 + ... + 19334.

Almost surely, 2^101021274 is an apocalyptic number.

101021274 is an abundant number, since it is smaller than the sum of its proper divisors (119130138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101021274 is a wasteful number, since it uses less digits than its factorization.

101021274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32622 (or 32619 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 101021274 is about 10050.9339864512. The cubic root of 101021274 is about 465.7336459174.

Adding to 101021274 its reverse (472120101), we get a palindrome (573141375).

The spelling of 101021274 in words is "one hundred one million, twenty-one thousand, two hundred seventy-four".