30121266 has 32 divisors (see below), whose sum is σ = 70318080. Its totient is φ = 8422416.

The previous prime is 30121261. The next prime is 30121271. The reversal of 30121266 is 66212103.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30121261) and next prime (30121271).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (30121261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5656 + ... + 9603.

It is an arithmetic number, because the mean of its divisors is an integer number (2197440).

Almost surely, 2^30121266 is an apocalyptic number.

30121266 is an abundant number, since it is smaller than the sum of its proper divisors (40196814).

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

30121266 is a wasteful number, since it uses less digits than its factorization.

30121266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15318.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 30121266 is about 5488.2844314048. The cubic root of 30121266 is about 311.1413562527.

Adding to 30121266 its reverse (66212103), we get a palindrome (96333369).

It can be divided in two parts, 3012 and 1266, that added together give a triangular number (4278 = T₉₂).

The spelling of 30121266 in words is "thirty million, one hundred twenty-one thousand, two hundred sixty-six".