10101021120 has 84 divisors (see below), whose sum is σ = 34743313800. Its totient is φ = 2693604864.

The previous prime is 10101021107. The next prime is 10101021181. The reversal of 10101021120 is 2112010101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

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, 1750770 + ... + 1756529.

Almost surely, 2^10101021120 is an apocalyptic number.

10101021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101021120 is an abundant number, since it is smaller than the sum of its proper divisors (24642292680).

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

10101021120 is a wasteful number, since it uses less digits than its factorization.

10101021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3507322 (or 3507309 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10101021120 its reverse (2112010101), we get a palindrome (12213031221).

The spelling of 10101021120 in words is "ten billion, one hundred one million, twenty-one thousand, one hundred twenty".