30121022 has 16 divisors (see below), whose sum is σ = 46016880. Its totient is φ = 14784768.

The previous prime is 30121001. The next prime is 30121043. The reversal of 30121022 is 22012103.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30121001) and next prime (30121043).

It is a junction number, because it is equal to n+sod(n) for n = 30120994 and 30121012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26408 + ... + 27524.

It is an arithmetic number, because the mean of its divisors is an integer number (2876055).

Almost surely, 2^30121022 is an apocalyptic number.

30121022 is a deficient number, since it is larger than the sum of its proper divisors (15895858).

30121022 is a wasteful number, since it uses less digits than its factorization.

30121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 30121022 is about 5488.2622021911. The cubic root of 30121022 is about 311.1405161077.

Adding to 30121022 its reverse (22012103), we get a palindrome (52133125).

It can be divided in two parts, 301210 and 22, that multiplied together give a triangular number (6626620 = T₃₆₄₀).

The spelling of 30121022 in words is "thirty million, one hundred twenty-one thousand, twenty-two".