30002210121944 has 8 divisors (see below), whose sum is σ = 56254143978660. Its totient is φ = 15001105060968.

The previous prime is 30002210121943. The next prime is 30002210122019. The reversal of 30002210121944 is 44912101220003.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×30002210121944² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30002210121943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1875138132614 + ... + 1875138132629.

Almost surely, 2^{30002210121944} is an apocalyptic number.

It is an amenable number.

30002210121944 is a deficient number, since it is larger than the sum of its proper divisors (26251933856716).

30002210121944 is a wasteful number, since it uses less digits than its factorization.

30002210121944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750276265249 (or 3750276265245 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 30002210121944 its reverse (44912101220003), we get a palindrome (74914311341947).

The spelling of 30002210121944 in words is "thirty trillion, two billion, two hundred ten million, one hundred twenty-one thousand, nine hundred forty-four".