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20120210012020 = 2255471839141683
BaseRepresentation
bin1001001001100100110011…
…11110000111011101110100
32122020110210000210211111011
410210302121332013131310
510114122142230341040
6110443032531522004
74144431363201136
oct444623176073564
978213700724434
1020120210012020
116457a2a023308
12230b521759304
13b2c434b4c571
144d7b75431056
1524d58d4c23ea
hex124c99f87774

20120210012020 has 24 divisors (see below), whose sum is σ = 42329684998944. Its totient is φ = 8033370866976.

The previous prime is 20120210012017. The next prime is 20120210012033. The reversal of 20120210012020 is 2021001202102.

It is a happy number.

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, 919559902 + ... + 919581781.

It is an arithmetic number, because the mean of its divisors is an integer number (1763736874956).

Almost surely, 220120210012020 is an apocalyptic number.

20120210012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120210012020 is an abundant number, since it is smaller than the sum of its proper divisors (22209474986924).

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

20120210012020 is a wasteful number, since it uses less digits than its factorization.

20120210012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839142239 (or 1839142237 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20120210012020 its reverse (2021001202102), we get a palindrome (22141211214122).

The spelling of 20120210012020 in words is "twenty trillion, one hundred twenty billion, two hundred ten million, twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 547 1094 2188 2735 5470 10940 1839141683 3678283366 7356566732 9195708415 18391416830 36782833660 1006010500601 2012021001202 4024042002404 5030052503005 10060105006010 20120210012020