30100020122 has 4 divisors (see below), whose sum is σ = 45150030186. Its totient is φ = 15050010060.

The previous prime is 30100020103. The next prime is 30100020131. The reversal of 30100020122 is 22102000103.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22102000103 = 6659 ⋅3319117.

It can be written as a sum of positive squares in only one way, i.e., 23534321281 + 6565698841 = 153409^2 + 81029^2 .

It is a super-2 number, since 2×30100020122² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7525005029 + ... + 7525005032.

Almost surely, 2^30100020122 is an apocalyptic number.

30100020122 is a deficient number, since it is larger than the sum of its proper divisors (15050010064).

30100020122 is a wasteful number, since it uses less digits than its factorization.

30100020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15050010063.

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

Adding to 30100020122 its reverse (22102000103), we get a palindrome (52202020225).

The spelling of 30100020122 in words is "thirty billion, one hundred million, twenty thousand, one hundred twenty-two".