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1010011212 = 223274007981
BaseRepresentation
bin111100001100111…
…000110001001100
32121101111212220200
4330030320301030
54032030324322
6244120013500
734012645050
oct7414706114
92541455820
101010011212
11479141411
12242301290
13131333b92
14981d5c60
155da0c8ac
hex3c338c4c

1010011212 has 36 divisors (see below), whose sum is σ = 2917810896. Its totient is φ = 288574560.

The previous prime is 1010011207. The next prime is 1010011229. The reversal of 1010011212 is 2121100101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 1010011194 and 1010011203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2003739 + ... + 2004242.

Almost surely, 21010011212 is an apocalyptic number.

1010011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1010011212 is an abundant number, since it is smaller than the sum of its proper divisors (1907799684).

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

1010011212 is a wasteful number, since it uses less digits than its factorization.

1010011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007998 (or 4007993 counting only the distinct ones).

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

The square root of 1010011212 is about 31780.6735611440. The cubic root of 1010011212 is about 1003.3259961519.

Adding to 1010011212 its reverse (2121100101), we get a palindrome (3131111313).

Subtracting 1010011212 from its reverse (2121100101), we obtain a square (1111088889 = 333332).

It can be divided in two parts, 10100 and 11212, that added together give a palindrome (21312).

The spelling of 1010011212 in words is "one billion, ten million, eleven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 4007981 8015962 12023943 16031924 24047886 28055867 36071829 48095772 56111734 72143658 84167601 112223468 144287316 168335202 252502803 336670404 505005606 1010011212