102142024220 has 24 divisors (see below), whose sum is σ = 215134758384. Its totient is φ = 40735570176.

The previous prime is 102142024207. The next prime is 102142024289. The reversal of 102142024220 is 22420241201.

It is a super-2 number, since 2×102142024220² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 102142024192 and 102142024201.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 7570562 + ... + 7584041.

It is an arithmetic number, because the mean of its divisors is an integer number (8963948266).

Almost surely, 2^102142024220 is an apocalyptic number.

102142024220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102142024220 is an abundant number, since it is smaller than the sum of its proper divisors (112992734164).

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

102142024220 is a wasteful number, since it uses less digits than its factorization.

102142024220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15154949 (or 15154947 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 102142024220 its reverse (22420241201), we get a palindrome (124562265421).

The spelling of 102142024220 in words is "one hundred two billion, one hundred forty-two million, twenty-four thousand, two hundred twenty".