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2021010020012 = 221733837625417
BaseRepresentation
bin11101011010001101100…
…101011001011010101100
321011012120122220110012102
4131122031211121122230
5231103012031120022
64144234510354232
7266004340504514
oct35321545313254
97135518813172
102021010020012
1170a118517895
122878281bb978
13118771276b89
146db62d70844
1537887758a92
hex1d68d9596ac

2021010020012 has 24 divisors (see below), whose sum is σ = 3566499503616. Its totient is φ = 1002040665728.

The previous prime is 2021010019871. The next prime is 2021010020027. The reversal of 2021010020012 is 2100200101202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2021010019975 and 2021010020002.

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, 3547673 + ... + 4077744.

It is an arithmetic number, because the mean of its divisors is an integer number (148604145984).

Almost surely, 22021010020012 is an apocalyptic number.

It is an amenable number.

2021010020012 is a deficient number, since it is larger than the sum of its proper divisors (1545489483604).

2021010020012 is a wasteful number, since it uses less digits than its factorization.

2021010020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7625977 (or 7625975 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2021010020012 its reverse (2100200101202), we get a palindrome (4121210121214).

The spelling of 2021010020012 in words is "two trillion, twenty-one billion, ten million, twenty thousand, twelve".

Divisors: 1 2 4 173 346 383 692 766 1532 66259 132518 265036 7625417 15250834 30501668 1319197141 2638394282 2920534711 5276788564 5841069422 11682138844 505252505003 1010505010006 2021010020012